Definition of threshold in English:

threshold

Pronunciation /ˈθrɛʃəʊld//ˈθrɛʃˌhəʊld/

noun

  • 1A strip of wood or stone forming the bottom of a doorway and crossed in entering a house or room.

    ‘he stood on the threshold of Sheila's bedroom’
    • ‘French brides stepped upon an egg before crossing the threshold of their new homes.’
    • ‘You should choose the appropriate door sweeps and thresholds for the bottom of the doors as well.’
    • ‘Emily was in tears before she crossed the threshold into her room.’
    • ‘George enters the house, crossing its threshold with one broad step.’
    • ‘Caitlyn was still with Connor when I entered, the two having just barely crossed the threshold of the room.’
    • ‘These prefabricated door thresholds are for use where two rooms with different floor levels come together.’
    • ‘So that's why I am happy to look at scientology girl, but will never dare cross the threshold and enter the building.’
    • ‘They were standing at the threshold of her room.’
    • ‘Josh stood over the threshold the doorway, smiling to be polite.’
    • ‘Armand stood at the threshold of her curtained room, wondering whether to go in or not.’
    • ‘Make sure basement doors have a threshold or sweep that properly fits.’
    • ‘For those who have not crossed the threshold of a mill for many years, this will be a chance to experience again the sights, smells and sounds of life in a mill.’
    • ‘Here a convex vinyl ridge across the top of the threshold presses against the bottom of the door for a tight seal against drafts.’
    • ‘Remove the shoe moldings, trim pieces, door thresholds, and floor grates carefully, using a pry bar and a scrap of wood for a leverage wedge so as not to mar the baseboard.’
    • ‘For a lot of people just the simple step of entering a church, crossing the threshold, is enormous.’
    • ‘As the door opened soundlessly, she crossed the threshold and entered into the room.’
    • ‘SureStep is a technology that allows the wheelchair to climb over thresholds up to 3 in.’
    • ‘Door weather stripping is installed on the door frame except for door sweeps and some thresholds.’
    • ‘The smell from that place was so strong, it used to make my friend J. violently ill if we even crossed the threshold at the local mall.’
    • ‘Remove raised doorway thresholds in all rooms.’
    • ‘I crossed the threshold and re-entered the house, which was buzzing with undying activity.’
    doorstep, sill, doorsill, doorway, entrance, entry, way in, door, gate, gateway, portal, approach
    View synonyms
    1. 1.1in singular A point of entry or beginning.
      ‘she was on the threshold of a dazzling career’
      • ‘Bulgaria is on the threshold of becoming a part of the North Atlantic Alliance; what is your comment on this, against the background of Austria's policy of neutrality?’
      • ‘Thanks to the convergence of the information and genome sciences revolution, we are already on the threshold of isolating and characterizing virtually all useful genes.’
      • ‘After spreading destruction all over Russia, Hitler's hordes reached Stalingrad, where they believed they were on the threshold of final victory and hunkered down for the winter.’
      • ‘We're on the threshold of a brand new beginning.’
      • ‘But on the threshold of great age he was no nearer an answer.’
      • ‘The judge, Mr Justice Wakerley, told Rafaqat: ‘You took the life of your young cousin on the threshold of her marriage.’’
      • ‘A student on the threshold of a new life at university killed himself with a massive cyanide overdose because of the acne that had ‘tormented’ him.’
      • ‘In the present exhibition the seven participating artists are young and on the threshold of their careers hoping to make works that in time would translate into blue-chip art.’
      • ‘Young students are on the threshold of adulthood, walking through the door to their future.’
      • ‘We are on the threshold of a new historical event: Bulgaria's accession to the European Union.’
      • ‘We are on the threshold of a state of social anarchy.’
      • ‘‘We don't want to talk about it but we are on the threshold of winning the league for the first time ever,’ says Campbell, ensuring that he breathes deeply enough.’
      • ‘Recording a verdict of misadventure, deputy coroner Carolyn Singleton said she had heard evidence of a young man on the threshold of his adult life who, for whatever reason, decided to dabble with lighter fuel.’
      • ‘They play urban refugees - an unhappily married man and a coffee-shop girl burdened by her ill father - on the threshold of potential love.’
      • ‘Although he was not yet wholly able to make a living from sales of his work, he had grown close to the leading surrealists and was on the threshold of fame following his first solo exhibition.’
      • ‘Although only on the threshold of life, Raymond and Ellen - who were outgoing and fun loving - had touched the hearts of young and old alike.’
      • ‘The autobiography covers the author's early years up to the threshold of university.’
      • ‘On the threshold of 2004, what are your expectations on a global scale in view of modern challenges such as international terrorism and international community's efforts to combat it?’
      • ‘For a city that is on the threshold of a major expansion, Mr. Monayee's is a gentle reminder that the city should not lose its soul in the search for economic prosperity.’
      • ‘We, his grandparents, see Gareth not just as a grandson, but a friend, a fine young man on the threshold of a wonderful life, which was so tragically cut short, on one of the happiest days of his life.’
      start, starting point, beginning, brink, verge, edge, dawn, birth, origin, inception, conception, opening, launch, inauguration, institution, initiation, debut, creation, day one
      View synonyms
    2. 1.2 The beginning of an airport runway on which an aircraft is attempting to land.
      • ‘The XP - 38 slammed into a golf course short of the runway threshold and Kelsey was luck to escape with cuts and bruises.’
      • ‘The aircraft crossed the threshold at 50 feet and the landing lights illuminated the numbers and fixed distance markers.’
      • ‘The aircraft hit the embankment short of the threshold, sliding up it, turning through 90-deg and coming to a stop.’
      • ‘After we passed and began our second missed approach at 400 feet, I saw what appeared to be the first 50 feet or so of the runway threshold.’
      • ‘Runway 14 began atop a steeply sloping terrace with an abrupt drop-off at the approach end, departure end and left side of the threshold.’
      • ‘Every additional knot of airspeed when crossing the threshold will cause the aircraft to float an additional 1,000 feet down the runway.’
      • ‘Try not to think of taxiing as just driving to the runway threshold.’
      • ‘Not a single word was spoken as we neared the runway threshold, the throttle still wide open.’
      • ‘The jet stopped 100 feet short of the threshold on the 10,000-foot runway.’
      • ‘The airplane crashed approximately two miles southeast of the Runway 27 threshold.’
      • ‘As I turned off the runway, I saw my wingman's landing light disappear into the fog at about 50 feet above the runway threshold.’
      • ‘Just before coming abeam the runway threshold I began a continuous finals turn, Spitfire style.’
      • ‘BA has held preliminary discussions with BAA, which owns Heathrow, about making changes to the infrastructure, to allow for the new landing threshold.’
      • ‘It is designed to fly under the 4,000 ft threshold used by commercial aircraft.’
      • ‘Maj Hunter executed a flawless short-field landing and touched down on-speed just past the threshold.’
      • ‘Flight 1420 touched down about 2,000 ft from the runway threshold, to the right of the runway centerline, and moved rapidly to the right.’
      • ‘The Bonanza crossed the runway threshold while the helicopter was still about 250 feet from a planned touchdown point of 1500 feet down the runway.’
  • 2The magnitude or intensity that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested.

    ‘nothing happens until the signal passes the threshold’
    as modifier ‘a threshold level’
    • ‘If beetle counts are below this level, continue sampling until the threshold is exceeded or beetle activity stops.’
    • ‘Alas, reaction to such obvious sadomasochistic goading exceeds the energy threshold of this reviewer.’
    • ‘To avoid this artifact, we excluded the values below the threshold intensity from the average calculation.’
    • ‘Reducing the threshold current of the laser was a key step to reducing power consumption.’
    • ‘Different pressures, such as overgrazing or drought, can push land over the threshold.’
    • ‘If the comparison quality measure exceeds a threshold, a match is determined to have been made.’
    • ‘Each text line is partitioned into blocks, and those of which contain a certain threshold percentage of text pixels are identified as valid.’
    • ‘Their observations also support the arguments of the Paris-Cambridge theorists about how the ear detects signals below the threshold for thermal noise.’
    • ‘Although no wartime sorties are missed, the number of available engines comes very close to dropping below the threshold needed to maintain sorties.’
    • ‘Abit's ThermalGuard will immediately shutdown your computer when your CPU die has exceeded its threshold temperature.’
    • ‘Above the photoelectric threshold, photoelectrons are emitted in proportion to the intensity of incident light.’
    • ‘By then I might even have crossed the 14 stone threshold that in my poorly thought out diet plan was going to be my mark for a return to drinking wine (beer coming back into play at 13 and a half stone).’
    • ‘Only the largest males in a population defend nests; they must pass a threshold size to carry shells.’
    • ‘The user may choose to be informed when the total number of unread messages exceeds a threshold.’
    • ‘Climb to 8,000 or 10,000 feet, and you may be well inside the ice-crystal threshold.’
    • ‘This provides some suppression, but the residual signal may still exceed detection thresholds.’
    • ‘This outcome reduces the probability the signal will pass the detection threshold, resulting in a missed detection.’
    • ‘As soon as the measured pressure change exceeds the threshold, the EGR system is deemed to pass the restriction test, and the test method is terminated.’
    • ‘As a result, the effect on development of temperatures that exceed stress thresholds is qualitatively different on an embryo's first day as compared with later days.’
    • ‘When the queue length for each output port exceeds a threshold value, the CS originates the cell inhibiting signal to all IXBs.’
    • ‘We all of us exhibit such repeats, but they are only problematic if they exceed a certain threshold number or size.’
    • ‘And still major leaguers blew it last season, triggering a more stringent form of testing by exceeding the five-percent threshold of positive results.’
    • ‘First, most midwestern mine grasslands exceed the apparent size thresholds for even the most area-sensitive grassland species.’
    • ‘Agents, chosen randomly, will move to a free space if the number of near neighbours of a different colour exceeds some threshold.’
    1. 2.1 The maximum level of radiation or a concentration of a substance considered to be acceptable or safe.
      ‘their water would meet the safety threshold of 50 milligrams of nitrates per litre’
      • ‘Moreover, there is an indication that the threshold of sucrose concentration may be lower in the bundle sheath than in the mesophyll.’
      • ‘The clinical risks of sensitivity and specificity also should be considered in identifying the threshold glycemic level.’
      • ‘We considered drivers negative if their urine tests were negative or their blood concentrations below these thresholds.’
      • ‘However, if the threshold for normal cholesterol is also applied half of the population would be considered at risk by the early age of 24 years.’
      • ‘This information was essential in permitting an accurate estimation of the safety thresholds of inhaled corticosteroid use and in eliminating confounding by use of oral corticosteroids.’
      • ‘The WHO-proposed threshold for Der p1 allergen concentration is 2 [micro] g/gm dust.’
      • ‘There seems to be a threshold plasma concentration below which symptoms may become apparent.’
      • ‘The hunchback gene is switched on only when bicoid protein, a transcription factor, is present at a certain threshold concentration.’
      • ‘What can be done if the concentration of metallic elements rises above the toxic threshold, particularly those that have no known function in the body?’
      • ‘There is a threshold below which radiation is safe and above which it becomes dangerous.’
      • ‘At a conservative calculation, around 250,000 people are currently exposed to levels above the accepted safety thresholds.’
      • ‘Finally, salbutamol pretreatment might hasten lidocaine absorption and increase peak lidocaine plasma concentrations toward the toxic threshold.’
      • ‘Evaluation of substances for which a threshold limit did not exist were then carried out.’
      • ‘This finding will make ongoing state and federal legislative efforts to craft safe exposure thresholds in response to growing public concern and litigation over mold more difficult, policy analysts say.’
      • ‘When it comes to carcinogens and toxins, for example, Priceless assumes that there is no safe threshold.’
      • ‘The threshold for CEMA concentrations toxic to tobacco cells was found to be 30-35 g ml - 1.’
      • ‘The Commission is of the view that the existing thresholds allow concentrations that have significant cross-border effects to fall outside the Regulation.’
      • ‘Exposure concentrations were well below threshold limit values, and hepatotoxicity was not predicted for these compounds.’
      • ‘Lowering the PSA threshold for proceeding to prostate biopsy would increase the risks of overdiagnosing and overtreating clinically unimportant disease.’
      • ‘There is a threshold of ATP concentration which stimulated the binding remarkably.’
      lower limit, starting point, minimum, margin
      View synonyms
    2. 2.2 The level at which one starts to feel or react to something.
      ‘he has a low boredom threshold’
      • ‘A few years after college, a freak accident - and one seriously low threshold for boredom - redirected Jaime's life.’
      • ‘In contrast, introverts are thought to be more socially conforming, more sensitive to reinforcement, have lower sensory thresholds, and therefore feel pain more easily.’
      • ‘Kagan and his colleagues have hypothesized that inhibited children have a lower threshold for sympathetic activation.’
      • ‘Patients with head injury should therefore not be pushed to return to demanding activities too quickly, and there should be a low threshold for seeking a specialist opinion or undertaking psychometric assessment.’
      • ‘Moreover, there is no evidence based recommendation of a risk threshold above which no attempt should be made.’
      • ‘Tissue congestion and inflammation tend to sensitize nerve endings and lower the threshold for stimuli.’
      • ‘Lower pain thresholds and potentially lower thresholds for other nociceptive stimuli such as HTS would be consistent with systemic nociceptive dysfunction in CFS.’
      • ‘If you have a low threshold for boredom, you'll probably end up with a ‘kerchief.’
      • ‘In the case of sugar, which is picked up by receptors on the tongue, flavor enhancers bind to the receptors and lower their threshold for stimulation, creating the same taste with less sugar.’
      • ‘Houseguests with low boredom thresholds can take advantage of all that Ayrshire has to offer; Burns's Cottage, Ayr Racecourse and the golf courses at Royal Troon, Prestwick and Turnberry are all within easy reach.’
      • ‘They also reported that the simple cells of young rats showed lower light flicker thresholds as well as a preference for slower movement speeds compared to complex and hypercomplex cells.’
      • ‘These mediators lower the nociceptor threshold, making the receptors more responsive to painful stimuli.’
      • ‘Professionals should have a low threshold for enquiring about mental health issues in children as parents rarely raise these concerns.’
      • ‘Absence makes your boredom threshold lower, as well as your heart sore.’
      • ‘A limit is place on the threshold that will be tolerated.’
      • ‘Conditioned to expect immediate gratification, these youth have shorter attention spans and also a low threshold for boredom.’
      • ‘Thus, units with preinspiratory discharge patterns may have comparatively low thresholds to stimulation by central chemoreceptor afferent inputs relative to inspiratory units.’
      • ‘Richard is the high school superstar, with a rich daddy and a low boredom threshold.’
    3. 2.3 A level, rate, or amount at which something comes into effect.
      ‘the inheritance tax threshold’
      • ‘Donaldson also may raise the threshold for hedge-fund investment, now $200,000 in income or a net worth of $1 million.’
      • ‘Inheritance Tax thresholds will rise by more than inflation over the next three years to £300,000 by the 2007/08 tax year.’
      • ‘This is the threshold at which workers start to pay income tax.’
      • ‘For example, you could have two parents who both work but who each earn just below the threshold for higher rate income tax.’
      • ‘I have also decided to radically restructure the rates and the thresholds for all three classes of beneficiaries and to increase the threshold for probate tax.’
      • ‘The National Insurance rates and limits for 2005-6 were confirmed by the chancellor in the pre-budget report, as were tax credit rates, thresholds and limits.’
      • ‘The Treasurer has announced new thresholds for marginal tax rates, which will cut personal income tax by $14.7 billion over the next four years.’
      • ‘So tonight Mr Speaker, what we have been led to believe and what those newspapers will demand is the income tax thresholds, the rates, the costings and how they will be paid for.’
      • ‘Most of the bills would ban prepayment penalties, put caps on points, and establish Annual Percentage Rate thresholds.’
      • ‘He predicted that the party would next promise to cut inheritance tax and the threshold for income tax.’
      • ‘The threshold for the higher rate tax of 40 per cent - which is at present pegged at stg £32,785 - is also expected to rise.’
      • ‘Unlike inheritance tax, which typically rises in line with the Retail Price Index, stamp duty thresholds do not rise automatically with each Budget.’
      • ‘Mr Flemming noted that small-scale farmers were not eligible for VAT registration, as they did not earn sufficient amounts to reach the VAT threshold.’
      • ‘Consider raising the small business tax and surtax thresholds for passenger vehicles and increasing the property transfer tax exemption.’
      • ‘Britain and the North's inheritance tax thresholds are far less generous than Irish rates, and many beneficiaries in the Republic could end up paying the higher rate on property bequeathed to them.’
      • ‘We have also increased the payroll and land tax thresholds that free up many small businesses from the burden of payroll and land taxes altogether.’
      • ‘On vacant land, the thresholds are $140,000 for metropolitan areas and $110,000 in regional areas.’
      • ‘In Spain, income tax is payable on the gross rents at a flat rate of 25 per cent while in Portugal, no tax-free threshold or tax credit is available in calculating assessable income.’
      • ‘The amount is below the threshold for inheritance tax, so there's no tax due immediately.’
      • ‘Without doubt, the 50 per cent increase in stamp duty rates and thresholds will have the single most negative impact.’

Origin

Old English therscold, threscold; related to German dialect Drischaufel; the first element is related to thresh (in a Germanic sense ‘tread’), but the origin of the second element is unknown.

Pronunciation

threshold

/ˈθrɛʃəʊld//ˈθrɛʃˌhəʊld/