Main definitions of lock in US English:

: lock1lock2

lock1

noun

  • 1A mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form.

    ‘the key turned firmly in the lock’
    • ‘Recommendations include carrying out risk assessments and having locks on windows and doors, both of which are sensible actions for any business premises regardless.’
    • ‘You will need to drill a hole through the door face for the lock or deadbolt and one through the edge for the latch.’
    • ‘Her ears picked up the sound of a door closing and a lock catching.’
    • ‘Around 1,200 homes have now had burglar alarms, security lights and door and window locks fitted, with 300 awaiting the upgrade.’
    • ‘As I was walking back, she saw me and went to roll down the window but hit the door lock by mistake thus activating the car alarm.’
    • ‘He thinks someone has managed to slip their hand inside the open window to release the door lock.’
    • ‘There was nothing he could use to defeat the lock on the door, there were no windows, and no sharp objects.’
    • ‘That night, she made sure to double check the locks on all the windows and bolt the door.’
    • ‘He encouraged home owners to fit door and window locks during a trip to Halliwell in Bolton and even took the opportunity to install security devices at a resident's home himself.’
    • ‘Dead bolts on the doors, and key locks for the windows are the safest.’
    • ‘Bryce got to his feet and stretched, marched over to the window and latched the lock.’
    • ‘These include window locks, door chains, and shed alarms.’
    • ‘Use steel doors with deadbolt locks and bar windows where appropriate.’
    • ‘This would include getting appliances fitted like personal pendants, security and censor lights, window and door locks, door chains and spy holes.’
    • ‘Experts can advise on everything from door chains, window locks and alarms to whether you might benefit from a floodlight in a darkened back yard.’
    • ‘Funding can be provided for window locks, door locks, door chains, security lighting, socially monitored alarm systems, smoke alarms.’
    • ‘An experienced DIY person may be able to tackle the installation of window locks or door locks.’
    • ‘She added that she took security measures seriously anyway, and always made sure security locks on doors and windows were in operation.’
    • ‘Devin waited until he heard the lock in the door latch shut, and upon hearing it, he walked right by Sandra and walked up the stairs.’
    bolt, catch, fastener, clasp, bar, hasp, latch
    View synonyms
    1. 1.1 A device used to prevent the operation or movement of a vehicle or other machine.
      ‘a bicycle lock’
      • ‘He released the steering lock and switched on the ignition.’
      • ‘Security devices are great deterrents, steering wheel and gearstick locks and locking wheelnuts are inexpensive and easy to fit.’
      • ‘I was bent over to move my steering lock and I got pushed from behind.’
      • ‘You see, some people put two locks on their bicycles and an iron cage outside their windows to prevent robberies.’
      • ‘A protective husband accused of beating a man to death with a steering lock after his wife's car was damaged acted in self-defence, a court heard yesterday.’
      • ‘You've tried three times now, and all you've managed to do is break the steering lock.’
      • ‘Andrew said the thieves had cut through his bike lock before stealing the machine, which had been parked off Fossgate.’
      • ‘Every car around here has a steering-wheel lock.’
      • ‘People are also advised to buy steering locks, immobilisers and car alarms to foil potential thieves.’
      • ‘They pull out bicycle U locks and head for the racks.’
      • ‘So what I really need now is a chain and a bicycle lock, so I can just leave the pump out in the locker room shower.’
      • ‘He failed to find him and so decided to try to break the steering lock in the car so he could drive home to Swindon.’
      • ‘A protective husband beat a man to death with a steering lock in the belief that he had hurled a missile at his wife's car, a court heard.’
      • ‘The dog let go only when a passing motorist stopped and hit the animal with a steering lock.’
      • ‘Remove the ignition key and engage the steering lock, even when parking on your own property.’
      • ‘He then switched the acceleration to cruise control, reached under his seat, and pulled out a steering lock.’
      • ‘Most of Lindsay's injuries were a direct result of her method of affixing herself to the billboard - she put a bicycle lock around her neck and attached it to part of the billboard.’
      • ‘‘If you have got a crook lock attached to your steering wheel the car is not going to get taken,’ he said.’
      • ‘The gates were also locked with bicycle locks on one occasion, which were so effective that the whole gate had to be dismantled in order to get trucks in or out.’
      • ‘If not, even a steering-wheel lock is better than nothing.’
    2. 1.2 A facility on a computer or mobile phone that requires a user to verify their identity with a passcode or other form of authentication in order to access the full functionality of the device.
      ‘there's a security lock on the phone and he doesn't know the code’
      • ‘The tablet even features a display lock, which locks the tablet's display and buttons, allowing young children to enjoy videos or interactive books without interruption.’
      • ‘He sold his computer and "had someone put a lock on my phone where I cannot access the Internet through a non-filtered browser."’
      • ‘With the built-in smart fingerprint sensor, the tablet's security lock can be released by simply placing the finger of a pre-registered user on the sensor.’
      • ‘Had to disable the lock and was clicking the phone just to make sure that it does not sleep.’
      • ‘By pressing the lock button to wake the phone, you will be prompted with the unlock screen.’
    3. 1.3 (in wrestling and martial arts) a hold that prevents an opponent from moving a limb.
      • ‘This throw is also useful in the event that an attacker facing you is able to pull your head down in order to get you in a neck lock.’
      • ‘I consider myself to have a reasonably high pain threshold from long years of being on the receiving end of aikido joint locks.’
      • ‘Some people fall in love with ankle locks and never learn to pass the guard.’
      • ‘The Kimura lock is the favourite armlock of Marcus Soares: once he locks it on, there is no escape.’
      • ‘Three big judoka simultaneously put locks on his neck and both arms.’
      • ‘The object is to submit your opponent using a variety of joint locks and chokes, or to win the match on points.’
      • ‘Well, the story is that Tomiki Sensei could do his wrist lock on anyone's upper arm.’
      • ‘Another useful technique is waki-gatame, an elbow lock where you clamp the opponent's arm against your body.’
      • ‘Instead they can apply the principle of an elbow lock, and let the technique form itself.’
      • ‘Yes, it's like wrestling where there's chokes and submissions, arm locks, leg locks, stuff like that.’
      • ‘I sat back, holding his ankle tightly but otherwise not applying the ankle lock at all.’
      • ‘Well, I've only done judo until now so I was a little confused by the leg locks.’
      • ‘One year is the year of the half guard; another is the year of the ankle lock.’
      • ‘Attacks are defended with blocks, various kicks, punches and strikes, throws, and wrist and arm locks.’
      • ‘This is the reason leg locks are barred in judo contests.’
      • ‘If you experiment with using the top arm and the bottom arm you will typically find that it is easier for you opponent to rotate his leg out of the lock if you use the bottom arm.’
      • ‘If you can get this arm lock against the opponent's elbow, you can easily break it (requires a subtle body shift).’
      • ‘We'd slam each other in turn, sometimes dragging the other down to the mat to grapple in laughter, cut off suddenly by a choke or a tap-out from a lock.’
      • ‘In judo, certain techniques, such as standing arm locks, are left out of practice because they were found to cause injury.’
      • ‘I worked out ways to defeat the headlocks, body locks and rear holds from wrestling.’
    4. 1.4archaic in singular A number of interlocked or jammed items.
      ‘a street closed by a lock of carriages’
  • 2A short confined section of a canal or other waterway in which the water level can be changed by the use of gates and sluices, used for raising and lowering vessels between two gates.

    • ‘It was nicknamed the Everest of canals because its 91 locks lifted boats 600 ft.’
    • ‘The property sits on 17 acres with six loose boxes and is adjacent to the 33rd lock on the Grand Canal.’
    • ‘Although this particular crowd was mainly due to people watching the boats pass in and out of the lock from the Stratford canal onto the Avon.’
    • ‘Waterways general manager Adrian Sains said boats were in the locks when the gates failed.’
    • ‘The Eilean Eisdeal is 66 ft 6 long by 18 ft wide - almost exactly the dimensions of the lock at the Crinan canal.’
    • ‘The new look Armentieres Square, with its continental-style piazza and canal lock with boats passing through, is the centrepiece of Stalybridge.’
    • ‘What would happen if the locks on the Panama Canal were destroyed?’
    • ‘After a short catnap while the vessel eased through the locks of the Welland Canal, it would be time to clean out the ship.’
    • ‘The inventor and artist Leonardo da Vinci designed the swinging gates and canal locks used on it.’
    • ‘A flood bank separates canal and river, and the lock is in partial disrepair.’
    • ‘He balls an intimidating fist as tight as he can, then releases it, like a lock in a canal.’
    • ‘During low stages on the Mississippi River, flood control locks are opened seasonally to drain the interior floodplain waters.’
    • ‘But a surprising number of deaths are also caused because manatees have no fear of Florida's underwater canal gates and locks.’
    • ‘They want to build a lock to keep the River Colne artificially high so boats can use the marina.’
    • ‘Many dams are accompanied by locks, which raise and lower water levels, lifting ships to ports at higher elevations.’
    • ‘When the Fianna Fáil man, from the 14th lock on the Grand Canal, got his hands on the booty he didn't forget his own and his own won't forget him now.’
    • ‘He filled his writings with discussions of plows, air pumps, compasses, canal locks, balloons and steam power.’
    • ‘But the man from the 14th lock on the Grand Canal is rooted in where he comes from.’
  • 3a lockNorth American informal A person or thing that is certain to succeed; a certainty.

    • ‘Avion Black filled in nicely when Lewis was injured but is not a lock to succeed him.’
  • 4historical A mechanism for exploding the charge of a gun.

verb

  • 1with object Fasten or secure (something) with a lock.

    ‘she closed and locked her desk’
    • ‘We would like to stress to everyone to make sure their homes are locked and secure at all times.’
    • ‘The all clear signal flashed on the screen, and both doors leading to the back of the building were securely locked.’
    • ‘She closed the door behind her and locked it with the chain lock just above her head.’
    • ‘She then walked out, Jude closing the door and locking it behind her.’
    • ‘I closed the door behind me, locked it, and drew the chain across.’
    • ‘In the factory of the 20th century, at day's end the owner locked the gates to secure his capital.’
    • ‘I opened it carefully and then closed it behind me, locking it securely.’
    • ‘Walking back to the door, she locked it securely then sat down at the table.’
    • ‘I securely closed and locked my doors, and got ready for bed.’
    • ‘I sprinted up the stairs and shut my bedroom door behind me, locking it securely.’
    • ‘Lacey stared at the closed door for a moment before locking it securely and drawing the curtains over the window.’
    • ‘She tried the barred door of her cell, but it was securely locked and would hardly even rattle.’
    • ‘I stood before my apartment door, cracked my neck for good measure and then exited, locking it securely behind me.’
    • ‘He threw the door shut behind him and locked it securely.’
    • ‘He then left the room, shutting the door behind him, and locking it securely.’
    • ‘I opened the door to my flat and went in, locking it again behind me and sliding the bolts across for good measure.’
    • ‘The back gate was locked and bolted so they must have jumped the fence run into the kitchen and taken it.’
    • ‘She carefully closed and locked it behind her, dropping her school bag and walking upstairs to her room.’
    • ‘Residents are being warned to make sure their sheds are securely locked after incidents where thieves have struck.’
    • ‘Most states no longer require a double-lock system, but medications should be stored in a secure, locked cabinet.’
    bolt, fasten, bar, secure, make secure, make fast, seal
    View synonyms
    1. 1.1no object (of a door, window, box, etc.) become or be able to be secured through activation of a lock.
      ‘the door will automatically lock behind you’
      • ‘They continued onto the next room, the door locking behind them.’
      • ‘Rebecca decided not to take the risk that the door might close and lock automatically behind her once she was inside.’
      • ‘I was instantly rushed inside the building, and the door locked behind me.’
      • ‘As the doors locked behind them, they realized they would not be returning home, as promised, but were being left to die.’
      • ‘All models have remote central locking, front electric windows, a trip computer and doors which lock automatically above walking pace.’
      • ‘The outer doors lock automatically at 8:00 p.m., three hours after the retail section has shut down.’
      • ‘As someone had lost the key about a month ago, and the door automatically locked, getting caught inside was very easy.’
      • ‘What's more, when he enters, the doors lock automatically and he's trapped inside.’
      • ‘However, he did catch the click as the door automatically locked.’
      • ‘I wasn't sure about the rest of the city, so I grabbed my radio and took the elevator to the roof, where the door locked behind me and the power went out.’
      • ‘I asked him what had happened and he said frequently when he'd go outside, the front door locked behind him for no reason.’
      • ‘Jim stuffed the jewels into the tank and replaced the lid, then retraced his steps to the door and out, making sure the door locked behind him.’
      • ‘As soon as the girls stepped out and the door locked behind them, a grey mist filled Melanie's room.’
      • ‘The latch seems to lock a bit more securely, but it's still possible to jiggle it loose too easily if you fully load it up with a floppy and two hard drives.’
      • ‘Hurriedly, they moved inside and toward another elevator, the door locking automatically behind them.’
    2. 1.2 Enclose or shut in by locking or fastening a door, lid, etc.
      ‘the prisoners are locked in overnight’
      ‘Phil locked away the takings every night’
      • ‘And speaking of e-mail… without it, this story would still be locked in a vault.’
      • ‘So he's locked up for 23 hours a day in a steel cage.’
      • ‘It is not about the real recipe, which is literally locked up in a safe in Louisville and figuratively in a few executives' brains.’
      • ‘Friday night and she was once again locked up in her room.’
      • ‘They knew they couldn't leave, and felt as if they were all locked up in a cage.’
      • ‘The death of a Bradford teenager engulfed in flames after igniting a highly flammable liquid could have been avoided if the chemicals had been properly locked up, an inquest heard.’
      • ‘How could they ever really understand that he felt safe locked in his room.’
      • ‘‘It has been locked up in a safe; it has been rolled up for decades and it's an important work,’ he said.’
  • 2Restrict access to the full functionality or data of (a computer, mobile phone, file, etc.), especially by requiring a user to verify their identity with a passcode or other form of authentication.

    ‘my computer is locked and I've forgotten my login info’
    ‘I don't want people to read my emails—that's why I lock my phone’
    • ‘You can also use an app which enables smartphone or tablet owners to lock, locate and recover their gadgets in the event of loss or theft.’
    • ‘To re-lock the phone, you can use the same thumb to lock the iOS device, by swiping down from the top of the screen with camera open!’
    • ‘The app works whether your phone is locked or not, and it can be told to repeat alarms so you don't have to reset it every day.’
    • ‘If your phone is locked while you're driving or sitting next to you while you work, you don't have to unlock it to see what's playing.’
    • ‘Other tricks include the ability to automatically lock a connected smartphone or tablet as soon as the user moves 3 feet away with the wristwatch on.’
    • ‘To sign out of your user account, just lock your tablet.’
    • ‘Aside from seeing the Start screen and putting up with a delay each time you log in, you'll see a lock screen for tablets each time you lock your computer.’
    1. 2.1be locked (of a mobile phone) operate only on the network of a particular carrier.
      ‘the phone is locked to T-mobile’
      • ‘If your mobile phone is locked with any mobile services provider you can also have it unlocked with free unlock codes.’
      • ‘For those of us who have cell phones that are not locked into a carrier, you might find it cheaper to buy a prepaid SIM chip once you arrive at your destination.’
      • ‘If you're not sure if your phone is locked, you can check that by inserting another carrier SIM.’
      • ‘We can unlock any Blackberry device regardless of the carrier/country the phone is locked to.’
      • ‘Your phone won't be locked to an individual carrier, so you can easily switch providers if performance degrades or you move to a new house where your original carrier doesn't work.’
      • ‘A locked Telstra phone won't work with Vodafone, and vice versa, in other words.’
      • ‘Some of the mobile phones come locked to specific mobile phone service providers that sell them.’
  • 3Make or become rigidly fixed or immovable.

    with object ‘he locked his hands behind her neck’
    no object ‘their gaze locked for several long moments’
    ‘the vessel was locked in ice’
    • ‘Caleb leaned forward in his seat, his gaze locking with his uncle's.’
    • ‘He stepped forward rigidly, his eyes locking on hers.’
    • ‘Both of them sat on lawn chairs in the yard behind the condo now, their gazes locked on the brilliantly starry sky.’
    • ‘She was silent, and her eyes were like living flames that roved over his figure, but her gaze finally locked with his, paralyzing him where he stood.’
    • ‘Shooting doesn't require the knees to be visibly bent; the point is they shouldn't be rigidly locked.’
    • ‘For a time, resistant readings had little or no currency: everyone was locked into the American gaze.’
    • ‘Once, he turned his head just slightly and our gazes locked.’
    • ‘Her eyes found him, and their gazes locked for a moment, brilliant blue meeting, oddly, yellow dotted in red-orange.’
    • ‘Their gazes locked again as they walked towards one another.’
    • ‘Sighing softly, the Pack leader knelt down as well and gently placed his hand under Dante's chin to lift his head, their gazes locking.’
    • ‘Brenner clasped his hands behind his back, his gaze locked on the tumbling image of the People's Way.’
    • ‘She tilted her head, her gaze cool as it locked on Kai's.’
    • ‘As soon as our gaze locked, I knew that I couldn't look away; I didn't want to.’
    • ‘Finally he looked up at her, their nearly identical gazes locking.’
    • ‘As Matt approached, their gazes locked and she smiled at him.’
    • ‘I kept my gaze locked to his eyes, still numb with shock.’
    • ‘‘You are lucky the girl is here,’ her hero growled, and his gaze locked with hers.’
    • ‘My gaze locked into Christopher's, I was in no position to answer.’
    • ‘His armed were pinned down at his side, his legs locked rigidly parallel of each other.’
    • ‘Both Sophia and Mina turned, their gaze locking with the man who stood behind them.’
    join, interlock, mesh, engage, link, unite, connect, combine, yoke, mate
    become stuck, stick, jam, become immovable, make immovable, become rigid, make rigid
    View synonyms
  • 4no object, with adverbial of direction Go through a lock on a canal.

    ‘we locked through at Moore Haven’

Phrases

  • have a lock on

    • informal Have an unbreakable hold on or total control over.

      • ‘If the phase-out crew didn't still have a lock on fidgety right-wingers with poor social skills, where would they be?’
      • ‘The Democrats should have a lock on domestic policy.’
      • ‘Usually, major-party candidates wait until they have a lock on the presidential nomination before diving to the center.’
      • ‘We know that Republicans have a lock on Bible Belt social conservatives and Sun Belt business de-regulators, but why do they play so well among middle American rural voters?’
      • ‘Say you work or go to school in a state where the Republicans have a lock on all the important offices.’
      • ‘But it doesn't hurt the union; the union has a lock on Hollywood.’
      • ‘If they couldn't win in 2004, they will never win, because the Republicans now have a lock on absolutely every political and judicial instrument in the country.’
      • ‘To begin with, it has never been the case that professionals have a lock on publication.’
      • ‘It is easy to believe that the devil has a lock on what is popular.’
      • ‘I don't know who's going to win - or what good it does now to pretend your guy has a lock on it.’
  • lock horns

    • Engage in conflict.

      • ‘The scrum has creaked badly in both matches so far and, since the Italians' strength is in this area, the Scottish forwards must view locking horns with them next Saturday with barely suppressed panic.’
      • ‘Even now, at an age when most people would rather be in a gated Florida compound than constantly locking horns with the establishment, he persists in banging his head against closed doors.’
      • ‘Here, he locks horns with a right-wing party spokesman on Belgium television.’
      • ‘When they go after a corporate player, they know they'll be locking horns with the best legal talent that billions can buy - not running roughshod over some overworked public defender.’
      • ‘They are bent on locking horns with the government and setting their own deadlines for the yatra and have begun what could be described as nothing but an illegal registration process to mislead the pilgrims.’
      • ‘‘This summit was always going to be about posturing and locking horns before the real business begins - negotiating the way forward out of this mess,’ he said.’
      • ‘But the patio outside his home has become the centrepiece of a bitter battle which has seen him lock horns with his next-door neighbour - the town's mayor.’
      • ‘Across Ohio, Pennsylvania and Florida, lawyers have already locked horns paving the way for lengthy court fights if the election is close.’
      • ‘Would such opposites attract, learn from each other, and astonish us, or would these two conflicting musical spirits lock horns and fight it out?’
      • ‘Fearful to confront, because of our own fears, perchance we find ourselves looking into a mirror and are terrified to lock horns with our own conflicting thoughts.’
      quarrel, disagree, have a dispute, wrangle, bicker, be at odds, be at loggerheads, lock antlers, cross swords
      View synonyms
  • lock, stock, and barrel

    • Including everything; completely.

      ‘the place is owned lock, stock, and barrel by an oil company’
      • ‘But then, neither had he planned to pick up his company and move it lock, stock, and barrel to San Jose, California, from Cleveland, Ohio, last fall.’
      • ‘It then essentially hands the entire thing, lock, stock, and barrel, to this unelected and unaccountable committee.’
      • ‘She returned from a vacation in Greece and found that someone had moved in, lock, stock, and barrel - complete with redecorating.’
      • ‘You're ‘special interests,’ you understand (every major candidate uses the phrase); you own the White House and Congress lock, stock, and barrel.’
      • ‘A New Zealander could actually buy it lock, stock, and barrel.’
      • ‘But in 1989, the most likely scenario was that Japan would buy us all lock, stock, and barrel.’
      • ‘It's a very simplistic notion to assume that the world is made up of some abstract group called industry that has, lock, stock, and barrel, the same policy perspectives on any issue.’
      • ‘Coming of age, as it were, as the business model replaced earlier social models, they bought into the business model lock, stock, and barrel.’
      • ‘If they were to sell off the operating agency lock, stock, and barrel, and lease the use of the tunnels and stations for, say, a 99-year period, there might be hope.’
      • ‘The very body that failed Auckland so miserably is now being rewarded with the keys - lock, stock, and barrel - to fix the place.’
  • under lock and key

    • Securely locked up.

      • ‘Is it a question of women being literally held as slave captive in the physical sense, living behind bars, under lock and key, or is it a question of something more subtle?’
      • ‘So everyone should make sure that their dogs are under lock and key at night and on a lead when taken out in public places because the dog warden will, no doubt, be busy over the next few weeks.’
      • ‘The farmers are appealing to all dog owners in the area to make sure their dogs are chained or under lock and key especially at night time when most of the damage seems to take place.’
      • ‘For anthropologists Thailand is a very difficult country to gather information on because much of it remains under lock and key, not for decades but for centuries.’
      • ‘Today's gun owner keeps his - or, increasingly, her - guns under lock and key, whether in a safe or locked with a gunlock.’
      • ‘That can mean storing formulas under lock and key or having employees sign confidentiality agreements.’
      • ‘This does not mean they will be scarred for life, and short of keeping your progeny under lock and key, you can't guarantee that they will never see anything you would rather they didn't.’
      • ‘Afterwards it will once again be under lock and key, behind a shatterproof, bulletproof, glass window, away from prying fingers.’
      • ‘‘In the end, I can't keep him under lock and key forever,’ she said.’
      • ‘All our major players are signed up on relatively long contracts so they are effectively under lock and key.’

Phrasal Verbs

  • lock someone down

    • Confine a prisoner to their cell, especially so as to gain control.

      • ‘I was locked down in a cell made for two, with five people, no working toilet, no food and no protection.’
      • ‘Before I was locked down, 3 troublemakers entered my cell and commenced to verbally assail my ailing celly.’
      • ‘Even his incarceration could not stop him working towards his ambition of a Lonsdale Belt: ‘I managed to train every day, even though I was locked down from eight at night until eight in the morning.’’
  • lock someone/something in (or into)

    • 1Involve or entangle someone or something in (an embrace or struggle)

      ‘they were locked in a legal battle’
      • ‘Record labels lock their artists in to legal agreements that hold them for a decade or more.’
      • ‘There continues to be the same emphasis on locking the human figures into their physical surroundings to the point where they are indistinguishable one from the other.’
      • ‘Internal cache locks a datacenter into finite and usually small maximum capacity.’
      • ‘Historically, war locks nations into an economy where preparation and fighting consumes billions of dollars.’
      • ‘However, you will be locked in to the SVR, currently 6.74%, for four years after the fixed period has come to an end.’
      • ‘Even that being the case, other speed racers are still my competitors and many times I have been locked in highly dangerous races with them.’
      • ‘There is no cosmic scriptwriter, but there are scripts which we are locked into.’
      • ‘Their greed and dictatorial rule have locked their nations into destructive and near permanent cycles of poverty, war, disease and dependency that have become Africa's trademark.’
      • ‘As the government's increase in prescription charges shows, we are not locked into a situation where changes cannot be made.’
      • ‘The problem with the whole legal process in this situation - they are locked into it.’
      • ‘Political struggles among competing religious and civic authorities have locked the state in unworkable policies, and forced the country into a devastating international isolation.’
      • ‘Grocery giants in Carlow are locked in a competitive price war, matching each other cent for cent across certain products.’
      • ‘Nor do I want to do business on the Internet with anybody who wants to lock me in with nondisclosures, noncompetes and so forth.’
      • ‘Societal regulation tends to crystallize the status quo, to impart a certain momentum and a certain inertia to the existent conditions of societies, by locking individuals into certain repetitive patterns of conduct.’
      • ‘In addition, once a person accepts housing with a Housing Association they are locked into that situation as the Council will not consider them for Council housing as they are deemed to be already housed.’
      • ‘On the other hand, reputation also locks people into particular patterns of collaboration and interaction through reinforcement.’
      • ‘After notching up record trade deficits month after month, Australia's terms of trade began to turn around in April when higher commodities prices were locked in to 12 month contracts.’
      • ‘That's according to the results of a new study which has criticised such services for trying to enslave internet users by locking them in to proprietary formats and music players.’
      • ‘On his travels, Sachs started noticing geographic, historic and social circumstances that lock countries into poverty traps.’
      • ‘It all marks a stark change from the rancour of the 1990s, when the two cities were locked in what seemed a never-ending dispute over air pollution.’
      1. 1.1Oblige a person or company to abide by the terms of a contract for a specific period.
        • ‘It is not just PFI schools that find themselves locked into long-term contracts.’
        • ‘It had locked itself in with Ecclestone until 2010, and Ecclestone had an option to extend the contract for five years.’
        • ‘Or because rates were moving so fast, they never locked in the promised rate.’
        • ‘That would be a fantastic time to refinance and lock in at a long term.’
        • ‘The owners are demanding the lengthening of rookie contracts, which lock players into a preset wage scale, from the present three-year agreement to five years.’
  • lock onto

    • Locate (a target) by radar or similar means and then track.

      • ‘It automatically passes on details of the most serious threat to the ship to Seawolf's tracker, which then looks for - and locks on to - the incoming target.’
      • ‘The receiver has to sort through this mess and figure out which signal to lock on to.’
      • ‘Not dissimilar to the ‘heads-up display’ found in fighter planes, a glowing red circle at the centre of an eye-piece targets and locks on to a vehicle up to a kilometre away and records its speed with a high degree of accuracy.’
      • ‘It has a range of between 800m and 3.5km and is a ‘tail-chasing heat source’, which means it locks on to heat from a plane's engines.’
      • ‘During these trials the ability of the missile to reject countermeasures and remain locked on to its target was assessed.’
      • ‘These are flying bombs that hug the ground to avoid radar as they near a pre-programmed target, then use smart imaging systems to lock on to the target and make necessary final-course corrections.’
      • ‘It was a different matter when the height and speed of a bomber stream was determined by radar, for even if radar did not lock on to individual planes, it could place the barrage in the centre of the stream.’
      • ‘Driven reticles confirm the missile seeker is locked on to the same target the gunner is tracking.’
      • ‘Faced with too many targets and choices, the missiles failed to lock on to a single radar.’
      • ‘As they attacked, Iraqi radar locked on to them.’
  • lock someone out

    • 1Keep someone out of a room or building by locking the door.

      • ‘At that moment I had thoughts of telling her it was in Sam and Ashley's room and locking her out.’
      • ‘The waiter stepped inside and bolted the door, locking us out.’
      • ‘For a second, I contemplated messing it up, but thought better since he could easily get to my room and lock me out.’
      • ‘She responded by inviting him to her room and locked him out in the corridor.’
      • ‘And the point is, I'm staring at the door because I am locked out.’
      • ‘So if he locks us out at the front door we can still get in, now go.’
      • ‘But he had to stop as she entered her room and locked him out.’
      • ‘‘And you can prevent it by simply turning the key in the door and locking them out,’ he said.’
      • ‘I've learned, too, that when I lock Thena out, she spends time sticking her legs under the door, which makes really annoying noises… damn cats.’
      • ‘She was already in the car, slamming the door, trying to lock him out.’
    • 2(of an employer) subject employees to a lockout.

      • ‘The strikers occupied factories to prevent employers from locking them out, and these sit-ins became festivals, intended both to reclaim workplaces for the workers and to spread the protests.’
      • ‘Around 600 workers employed at Bendix automotive brake manufacturers in Ballarat were locked out on June 24, after placing work bans for new enterprise agreement.’
      • ‘A number of SIPTU workers at the plant claimed that since March 5 they have been locked out by management because they have refused to undertake new working arrangements, which they said were foisted upon them without consultation.’
      • ‘Bus drivers employed by National Bus in Melbourne were locked out on April 7.’
      • ‘An employer has to pay his employees wages during a strike and cannot lock them out.’
      • ‘About 350 workers employed by the Québec bookstore chain Renaud-Bray were locked out on November 21.’
      • ‘But their employer locked them out last year, and they have been campaigning for their jobs ever since.’
      • ‘Eighty workers employed by Brighton Cement Company in Birkenhead near Adelaide were locked out on Monday when they attempted to return to work after a three-week strike over a new enterprise agreement.’
      • ‘Those to be re-hired were told they would be locked out if they did not sign individual employment contracts.’
      • ‘Workers employed by leading coating paint manufacturer Mirotone were locked out on February 22.’
  • lock someone out of

    • Exclude someone from.

      ‘those now locked out of the job market’
      • ‘You need to be in their face and active, or they will lock you out of the loop.’
      • ‘The French and German governments informed the Turkish opposition parties that if they voted to help the Coalition war effort, Turkey would be locked out of Europe for a generation.’
      • ‘Otherwise, they could be locked out of the US market from December 12.’
      • ‘But by locking them out of their own party establishments we will also cause them to react violently in order to be heard.’
      • ‘In particular, they feared that a peace agreement in the south would strengthen the government in Khartoum domestically and internationally and lock them out of the national political process altogether.’
      • ‘The submission also says landholders south of the border were under-represented, and the New South Wales Government was locked out of contributing to the draft plan.’
      • ‘But she is locked out of social work because when she was at school access to university was restricted to the few - and now retraining would take too much time out of her working life.’
      • ‘If we want to help poor countries we should allow them to trade with us instead of locking them out of our markets with tariffs, quotas and the like.’
      • ‘They need to prove the quality of this commitment with policies to clean up accountability in government big time, and to let the people into the political process, not lock them out of it.’
      • ‘Parents saw red over the appointment, organising protest meetings and demanding the departmental rules which locked them out of the decision making process be changed.’
      keep out, shut out, refuse entrance to, deny admittance to
      View synonyms
  • lock someone up (or away)

    • Imprison someone.

      • ‘Now now Ally, he has been locked away in a magical prison for longer than we have been alive.’
      • ‘A persistent teenage criminal who broke the terms of his antisocial behaviour order has been locked up for five months.’
      • ‘If he had been locked up in jail for a start, the police would have known exactly where to go.’
      • ‘She spent five years on death row, albeit one specially created for her by the Florida prison authorities, which cleared out an entire wing of an old prison for women, before locking her up in solitary confinement.’
      • ‘If I was in charge of the Correctional Services, I would lock you up in solitary confinement and throw away the key, better still, I would bring back the death penalty.’
      • ‘The next thing I knew was that we were locked up in a jail with four other prisoners.’
      • ‘But when that cell door was slammed shut at night and I was locked away on my own in the dark, it was hard to put a brave face on things.’
      • ‘When I was locked up as a political prisoner in Taiwan, I encountered a middle-school student.’
      • ‘In prison you are locked up for long periods of time and there is no time to get to know the staff.’
      • ‘In one notorious case, a father had his young daughter deported from the centre without his knowledge or a chance to say goodbye while he was locked up in solitary confinement.’
      • ‘His kind had locked me up in jail for a year, and he wanted mercy.’
      • ‘‘I like the idea of locking her up in a jail cell better anyway,’ Joshua quipped.’
      • ‘If you want to lock someone up in jail, you need to prove beyond reasonable doubt that they did it, so you have to have an adversarial system where you can rigorously test the evidence of a complainant.’
      • ‘If I was a copper, which thankfully I am not, I'd be in despair at the attitude of senior Law Lords who are encouraging the idea that burglars should no longer be locked up.’
      • ‘If he arrived the same way today he would be locked up in a detention centre.’
      • ‘At the beginning of the game, things don't look too bright for him as he is locked up in a jail out of which people generally don't escape.’
      • ‘A teenage thug, who kicked and punched a nurse so severely his head ‘looked like a crushed Easter egg,’ has been locked up for four and a half years.’
      • ‘And if I hadn't, well who knows we could be locked up in a jail now, accused of murder, or even worse, they could have caught up with us!’
      • ‘Take this traitor to the jail and lock him up; I caught him trying to get in.’
      • ‘Everyone here is astounded that I was locked up in the jail's harshest quarters for so long.’
      imprison, jail, incarcerate, send to prison, put behind bars, put under lock and key, put in chains, put into irons, throw into irons, clap in irons, hold captive
      keep out, shut out, refuse entrance to, deny admittance to
      View synonyms
  • lock something up (also lock up)

    • 1Shut and secure a building by fastening its doors with locks.

      ‘the diplomatic personnel locked up their building and walked off’
      ‘you could lock up for me when you leave’
      • ‘After shutting the door and locking it up, she turned to look at Hope.’
      • ‘Windows and doors were boarded up, shops were locked up and the gates to the castle were wide open.’
      • ‘‘Shh,’ he put his finger to his lips and closed the door behind him, locking it up again.’
      • ‘It took me a minute to remember that today was Sunday and the building was locked up.’
      • ‘We had no way of knowing how bad the fire was until we got into the building because obviously it had been locked up since Friday.’
      • ‘Iris raced out the door without bothering to lock her room up.’
      • ‘Civic centre buildings have been locked up as a result of the strike and are defended by the paramilitary police against protesters.’
      • ‘But when the Evening Press called at the two-storey Kathryn Avenue building on the Pigeoncote industrial estate, it was locked up and shuttered from view with blinds.’
      • ‘I think the building was locked up for Christmas yesterday, so I'm not sure I know how this was delivered.’
      • ‘In October 2000, tenants say two employees of the company forced them all to move out of the building by using intimidation tactics like threats, dogs, locking the building up and shutting off electricity.’
      • ‘I shut the bedroom door, locked the house up and got my bike out of the shed.’
      • ‘I go back to the bar and catch Cody before he locks up.’
      • ‘But, just weeks after the company opened a second shop in the district in Shipley town centre, the doors on all the stores have been locked up and there is no answer on any of its telephone lines.’
      1. 1.1Invest money in something so that it is not easily accessible.
        ‘vast sums of money locked up in pension funds’
        • ‘As members may be locking their money away for several decades, they may be willing to take a bit more risk to get a better return.’
        • ‘Perhaps locking the money away in a non-liquid asset such as property is not the best option.’
        • ‘Fixing your rates on savings may make sense, as long as you can afford to lock your money away, because if commentators are correct returns have further to fall.’
        • ‘I had quite a bit of money on deposit, but I couldn't lock it away, because I needed to live off it while I was studying.’
        • ‘And you might get an even better rate if you're prepared to lock the money away for a year or more.’
        • ‘So those shares will be locked away and will generate some extra dividend income for the family.’
        • ‘The duff bit about it is that you have to lock your money away for a full five years, the minimum investment is £2,000 and you have to reclaim a sizeable proportion of those returns via your tax return during each of those five years.’
        • ‘Fold in the automatic deduction - savings whisked away before I see it - the tax break, and the fact that the money is locked away so that it can't be splurged on a vacation or a new car, and you've got something pain free that makes you feel good.’
        • ‘So why do some people earn lower interest by locking their money away?’
        • ‘I don't want to lock his money away, so I tend to ignore notice or fixed-term accounts.’
        • ‘In that case it probably makes sense to reduce the loan now, if you can afford to lock those savings away, as this will save additional interest.’
        • ‘This high level of tax relief makes pension vehicles far more attractive investments than most, but the drawback is that all money in the fund is locked away until retirement.’
        • ‘If you do not want to lock your money away, an instant-access variable-rate account is another option - but the rate could fall if base is cut again.’
        • ‘It is not always possible for investors to lock their money away long term.’

Origin

Old English loc, of Germanic origin; related to German Loch ‘hole’.

Pronunciation

lock

/läk//lɑk/

Main definitions of lock in US English:

: lock1lock2

lock2

noun

  • 1A piece of a person's hair that coils or hangs together.

    ‘she pushed back a lock of hair’
    • ‘Kieran blew a lock of hair out of his eyes, exasperated.’
    • ‘She twirled a lock of his hair absently, whispering, ‘Will we see each other again?’’
    • ‘He took a lock of my hair and brought it to his lips.’
    • ‘And it looks like she means it, too - it's been reported that Kate has actually given Jamie a lock of her hair.’
    • ‘Luke reached over and grabbed a lock of my dark hair.’
    • ‘We all paused, turned to look at Sara in shock as she tugged self-consciously at a lock of pale hair.’
    • ‘I twisted a lock of hair around my finger, a nervous habit of mine.’
    • ‘He reached out and curled a lock of hair behind her ear.’
    • ‘His eyebrows knit angrily together under a lock of loose black hair.’
    • ‘Emily flicks a lock of her red hair with her fingers.’
    • ‘She twisted a lock of bright hair between her fingers.’
    • ‘I don't remember what it was that we'd been talking about, but he suddenly reached out, and with a very gentle touch, moved a lock of hair off my face.’
    • ‘She twisted a lock of her honey-colored hair around her finger and fluttered her eyelashes at me, pouting her soft full lips to look enticing.’
    • ‘Sarah twisted a lock of blonde hair around her finger.’
    • ‘He had thick black hair, a lock of which was hanging over his eye.’
    • ‘Although the prince's letters to her do not survive, he is known to have sent her a lock of his hair and his portrait in miniature.’
    • ‘With a sigh, Sophie brushed a lock of brown hair out of her face.’
    • ‘My attention had been momentarily distracted by a lock of hair curling over his eye.’
    • ‘She pushed a lock of dark hair out of her almond-shaped eyes.’
    • ‘Blowing a lock of hair off of my face, I looked down at him.’
    tress, tuft, curl
    View synonyms
    1. 1.1locksliterary A person's hair.
      ‘flowing locks and a long white beard’
      • ‘Andy sighs and runs his hand through his silver locks.’
      • ‘When it comes to length, Danilo suggests those with curly locks keep hair short or very long.’
      • ‘Earlier, without any joy, the coach had demanded the player shave off his flowing ginger locks and wild beard combo.’
      • ‘He was a striker who started wide and cut this way and that, long, blond locks flowing behind.’
      • ‘He had chopped off his unruly black locks and his hair was now short and neat.’
    2. 1.2 A tuft of wool or cotton.
      • ‘Fringe your dappled fawnskin cloaks with wooly tufts and flowers, and locks of purest white.’
    3. 1.3locks
      short for dreadlocks

Origin

Old English locc, of Germanic origin; related to Dutch lok, German Locke, possibly also to lock.

Pronunciation

lock

/läk//lɑk/