Main definitions of pump in US English:

: pump1pump2

pump1

noun

  • 1A mechanical device using suction or pressure to raise or move liquids, compress gases, or force air into inflatable objects such as tires.

    ‘a gas pump’
    • ‘This pump is operated by aligning the rear cycle wheel with the mechanical pump wherein a rotor is provided for revolving the cycle wheel.’
    • ‘Over 100 stations were forced to close after activists cut power to the petrol pumps and tied petrol pump nozzles together.’
    • ‘The drug is usually administered daily via a mechanical pump that pumps the drug underneath the skin while the child is sleeping.’
    • ‘Once the vehicle is started the electric pump will level it and the mechanical pump will take over once the vehicle is moving.’
    • ‘Antiembolism stockings and pneumatic compression device pumps are placed on the patient's lower extremities and are used when the patient is in the hospital.’
    • ‘The device is a mechanical pump that can take over the function of either the left or right chamber in the heart.’
    • ‘In such an event the person concerned can be kept alive only by continuous artificial respiration by a mechanical pump.’
    • ‘Dual hydraulic pumps evenly raise and lower the platform at a rate of 8 feet per minute.’
    • ‘Functioning basically like a pump, it compresses the refrigerant and provides pressure to force it around the rest of the cooling system.’
    • ‘Because they are mechanical systems, pumps with electrical connections should be checked at least once a year.’
    • ‘If the energy is transferred to the fluid, thereby increasing its pressure, the devices are called pumps, fans, or compressors.’
    • ‘Since they are powered entirely by hydraulic pumps, there is no mechanical transmission.’
    • ‘Potential examples include switches in optical communication devices and pumps that move solutions though minuscule channels for mixing and analysis.’
    • ‘Manufacturers are boosting hydraulic flows by adding pumps and increasing pressures.’
    • ‘But crews armed with high pressure pumps move in today to remove the pigeons' deposits.’
    • ‘Mechanical pumps can produce vacuums to the medium pressure level.’
    • ‘For the other hydraulically operated functions, the pressure is generated by a mechanical pump.’
    • ‘The equipment is pushed to the limits of its hydraulic pistons and pumps as it moves heavy materials out of trenches into dump beds or across grades.’
    • ‘One of these devices is the insulin pump, a mechanical device that can be programmed to deliver insulin more like the pancreas does.’
    • ‘The naturally occurring well is renowned for the purity of its water, which is drawn with the aid of a mechanical pump.’
    1. 1.1in singular An instance of moving something by or as if by a pump.
      ‘the pump of blood to her heart’
      • ‘My chest and triceps were toast and the pump of blood into the muscles was immense to say the least.’
      • ‘His pulse was weak and feverish, more like a shiver than the pump of his life's blood.’
      • ‘This may be followed by another set of 10 reps for a final pump of nourishing blood.’
    2. 1.2Physiology with modifier An active transport mechanism in living cells by which specific ions are moved through the cell membrane against a concentration gradient.
      ‘the bacterium's sodium pump’
      • ‘The later hyperpolarization results from stimulation of the plasma membrane proton pump due to the cytosolic acidification associated with the activity of the nitrate transporter.’
      • ‘In certain disease states, the capacity of membrane pumps to maintain normal concentration gradients may be compromised.’
      • ‘In sufficient quantities, it can cause permanent damage to the cells' noradrenaline reuptake pump.’
      • ‘Mechanisms of failure of calf muscle pump and venous hypertenion.’
      • ‘All cells have sodium pumps in their membranes; these consume energy by hydrolysing adenosine triphosphate.’
    3. 1.3 A pump-action shotgun.
      • ‘It was the unmistakable sound of a pump shotgun chambering a load.’
      • ‘The problem comes with firearms that do not allow access to the breech, such as an Ml Garand or a pump shotgun.’
      • ‘Used pump shotguns abound in this country and remain a favorite choice for the shooter requiring the utmost in reliability.’
      • ‘The pump shotguns are giving way to autos, and also to semiautomatic rifles and pistol caliber carbines.’
      • ‘Nick had taken to using a pump shotgun to get the job done.’

verb

  • 1with adverbial of direction Force (liquid, gas, etc.) to move in a specified direction by or as if by means of a pump.

    ‘the blood is pumped around the body’
    no object ‘if we pump long enough, we should bring the level up’
    • ‘He was pumping gas at a Sunoco station in Manassas, Virginia.’
    • ‘He was pumping gas through the vent into my room.’
    • ‘Last month an elderly Mayo couple were left homeless when fire fighters were forced to pump water from a nearby river after their house caught fire in the middle of the night.’
    • ‘I remember when you casually mentioned to the attendant who pumped your gas that you were moving downtown, and he started to cry.’
    • ‘The gas is pumped in at high-pressure, so it pushes down on the liquid product with a good amount of force.’
    • ‘This is done of course to protect the life of the president; apparently the lives of ordinary Americans pumping gas or loading their groceries do not warrant the same protection.’
    • ‘As anyone who has pumped gas knows, the higher the octane of fuel the higher the price.’
    • ‘In the end, the fire brigade were forced to pump water from a nearby river.’
    • ‘I hope people reading the book might think twice about the circumstances of the man who pumps their gas or the cashier who rings up their groceries.’
    • ‘I hate pumping my own gas and I hate checking the oil and water.’
    • ‘He used the steam engine to pump water out of mines.’
    • ‘The Coalbrookdale Company had smelted its last iron in the area by 1821, and that year had dismantled the Resolution steam engine that pumped water up the dale to power the furnace bellows.’
    • ‘Where no cut-off switches in the boreholes exist, this results in a combination of air and water being pumped to the reservoirs.’
    • ‘If we were to stop pumping greenhouse gases into the air, the earth would not recognize that it is able to dictate policy.’
    • ‘He actually had a job pumping gas (with a pay rate that didn't nearly cover the cost of the average bachelor apartment) so he was staying at the homeless shelter.’
    • ‘We were trying to pump enough water away for people just to get out of their houses.’
    • ‘The jailed men want Shell to build the gas refinery offshore because they fear that pumping unrefined gas past their homes will lead to a health and safety risk.’
    • ‘In operation, water is pumped from the engine to the top tank, where it spreads over the tops of the tubes.’
    • ‘He came out to the car and visited through the window while he pumped my gas.’
    • ‘Already there are ads on small screens that jabber at you while you pump your gas, while you use your ATM machine and while you wait in the supermarket line.’
    force, drive, push, send, transport, raise, inject
    View synonyms
    1. 1.1no object, with adverbial of direction Move in spurts as though driven by a pump.
      ‘blood was pumping from a wound in his shoulder’
      • ‘My heart rate increases, my blood pumps faster and the adrenaline begins to surge.’
      • ‘He ran a hand through his hair, the rush of adrenalin still pumping though him, then he sighed.’
      • ‘He looked terrible, armour torn and mangled while blood pumped from numerous wounds around his body.’
      • ‘This is because your body has adjusted to the constant stream of alcohol pumping through your system.’
      • ‘When Harry's turned on, his adrenaline flows and the endorphins pump, and he feels alive instead of dead.’
      • ‘Adrenaline pumped through her blood as a dizzying rush of vertigo overcame her from looking down upon the streets far below.’
      • ‘Becca and I began to climb down, our veins pumping with the adrenaline rush of not only conquering the rigging, but in a storm, to help someone, and the captain at that.’
      • ‘The rush of adrenalin pumped through her veins, and Ashlyn raced toward Winnie and Rey's room.’
      • ‘But when the adrenaline is pumping to your brain, the hot, sticky blood coursing through your veins, who could resist?’
      • ‘The reduced venous pressure reduces the return flow of blood into the heart, so the blood pumped out of the heart is correspondingly reduced.’
      • ‘Blood pumped out of her wounds and sluggishly oozed down her body.’
      • ‘I struggled then, adrenaline suddenly pumping through my already rushing blood.’
      • ‘With her adrenaline pumping, Mac rushed with all her energy and capability towards the elevator doors.’
      • ‘Nice little rush to get the blood pumping and get everybody in the proper mindset of combat.’
      • ‘The adrenaline rush took her on it's own course and she could feel the blood pumping in her ears.’
      • ‘Shock reigned for a few seconds, then heat surged, pumped through veins, and I responded.’
      • ‘The scene is still vivid in my memory - I was mesmerised, I could feel my heart pumping and the adrenalin flow.’
      • ‘There's nothing like 'em for getting the blood pumping and feeling that surge of collective energy.’
      • ‘His nerves were jumping out his system, the adrenaline pumping and flowing like mad.’
      • ‘The adrenaline was circulating, surging and pumping in the heat of the moment.’
      spurt, spout, squirt, jet, surge, spew, gush, stream, flow, flood, pour, spill, rush, well, cascade, run, course, discharge
      View synonyms
  • 2Fill (something such as a tire or balloon) with liquid or gas using a pump.

    ‘I fetched the bike and pumped up the back tire’
    ‘my veins had been pumped full of glucose’
    • ‘Soon I was on the table with an IV in my arm, pumped full of powerful narcotics, and ready to be probed by the ship manned by the hospital staff.’
    • ‘Surely they deserve more than to be pumped full of drugs, just to ensure that our overstretched military forces can continue to support the whims of politicians.’
    • ‘He was still pumped full of rage but he also shocked and confused.’
    • ‘America is hungry… for food that is not drenched in pesticides, pumped full of antibiotics and covered with sealing wax.’
    • ‘He seemed puffy, like he'd been pumped full of embalming fluid.’
    • ‘‘Standard’ bacon is pumped full of salt water during the curing process.’
    • ‘Even for a devoted carnivore, you'd like to eat meat that's not been pumped full of antibiotics, steroids, and hormones.’
    • ‘Most farmed animals are now crowded in sheds with dirty conditions and pumped full of drugs so they lead sad and unnatural lives.’
    • ‘I couldn't see to read it, I wouldn't have understood it anyway, I was pumped full of morphine. I just held on to it for dear life.’
    • ‘Glen says mass-farmed animals are pumped full of antibiotics to ward off potential diseases they may spread, due to their living in such close proximity to one another.’
    • ‘Nevertheless, he spent the holiday period, in agony, pumped full of painkillers, playing to over 6,000 people.’
    • ‘At times, when I was lying on my hospital bed being pumped full of chemotherapy drugs that made me as sick as a dog and caused my hair to fall out, I used to close my eyes and dream I was somewhere else.’
    • ‘I went home so pumped full of steroids that I literally went without sleep for nearly three weeks.’
    • ‘The millisecond he stood up, he would be pumped full of steel.’
    • ‘Gemma had been pumped full of drugs all this time, so she needed time for her body to get back to normal.’
    • ‘I was pumped full of steroids intravenously and was in hospital for over two weeks.’
    • ‘Enough generations of children have already been pumped full of these types of prejudices.’
    • ‘The idea that farmed salmon are pumped full of chemicals is an urban myth.’
    • ‘The pair arrived at the doctor's surgery and within minutes Kirsty was in an ambulance on the way to Christchurch hospital, where she was pumped full of antibiotics.’
    • ‘Hopefully it was only because of the drugs I had been pumped full of.’
    inflate, blow up
    View synonyms
    1. 2.1informal Shoot (bullets) into (a target).
      • ‘As he rounded a corner, seven gunmen opened fire, pumping the car and driver full of bullet holes.’
      • ‘And in 1995, he petrified holidaymakers by pumping a volley of bullets into the air outside a disco in the Caribbean resort of Cartagena.’
      • ‘I watched as Alexandria pumped three bullets into Rafael's chest, and I saw him go down.’
      • ‘Handguns can pump bullets quickly and accurately, and rifles are likewise lighter, easier to use, and faster to reload.’
      • ‘Having cornered him and pinned him to the ground they pumped five bullets into his head at close range.’
  • 3Move vigorously up and down.

    with object ‘we had to pump the handle like mad’
    no object ‘that's superb running—look at his legs pumping’
    • ‘Then they pumped a handle on the press that squeezed the water out of the cylinder and formed tightly-packed disks.’
    • ‘Ju had his left hand on the dome, hair standing on end as Ernie pumped the handle like fury.’
    • ‘His rough left hand turned the handle on the pitch black pot while his right hand pumped a small bellows to encourage the fire.’
    • ‘In the faint light we rose and sang hymns, accompanied by the organist sitting comfortably on the floor and using his right leg to pump the harmonium.’
    • ‘He pumped the handles of slot machines and bet feverishly on the roulette wheel.’
    1. 3.1 Apply and release (a brake pedal or lever) several times in quick succession, typically to prevent skidding.
      • ‘Emlyn held the white bowl carefully with one hand, and, using all the strength in her other, pumped the lever until water began to stream out of the hole to her right.’
      • ‘Only some feral instinct keeps you pumping the brake pedal and steering into the skid, so that you slide instead of spin.’
      • ‘I find that it helps to pump the rear brake lightly and quickly.’
      • ‘Details are still emerging, but it looks like he tried to pump his brake pedal, but instead found his accelerator pedal.’
      • ‘Mr. Wehrman was pumping the gas pedal, an irritated expression on his face, holding the key in the ignition.’
    2. 3.2Baseball Move one's arm as if throwing a ball held in the hand, but without releasing the ball.
      in combination ‘behind the plate Howard double-pumped, then threw to second’
      • ‘If you pump fake the ball, you may actually see players downfield take a step toward where the throw would have gone.’
  • 4informal Try to elicit information from (someone) by persistent questioning.

    ‘she began to pump her friend for details’
    • ‘Elise was playing dumb, pumping her father for information.’
    • ‘Charges hadn't even been filed, yet there I was stalking her street, putting on a concerned, serious face as I pumped her neighbors for tips.’
    • ‘The authorities didn't know at this stage of his movements overseas but they were keen to pump him for information on the prayer room, which was now under close surveillance.’
    • ‘Anyway, our tutor, who believes we are all on the simple side, favours questions with easy and obvious answers and was pumping us for information on Louis XVI.’
    • ‘Then James wouldn't think she was pumping him for information.’
    • ‘They'll pump him, try to get as much information out of him as possible.’
    • ‘Or was it because Alan had been lying, and he was trying to pump her for information about it?’
    • ‘Suffice it to say that after more than an hour of pumping the poor guy like a mostly-empty keg, by the time dessert was served, I had names.’
    • ‘He'd rather play something else but if that's what it took to pump Adam for information he'd do it.’
    • ‘Having never had the pleasure of eating out at Est Est Est, I pumped my good friend Alison from Edinburgh for information.’
    • ‘What she saw was a very clever ploy to pump her for information.’
    • ‘They might try to pump him for information vital to the war effort, and that was never good.’
    • ‘He was standing in the driveway talking to Chris and looking at his car, probably pumping him for information about where they were going and what they were doing.’
    • ‘We have pumped him for all the information he has.’
    • ‘After they had pumped me dry of information, the CIC people let me go.’
    • ‘Connie tried pumping her for information on what Hardwick wanted, but she evaded the questions so skillfully that Connie realized she was in a different league.’
    • ‘She'd been pumping me for information about Brad all week.’
    • ‘My own father was pumping me dry for information!’
    • ‘They asked Scott's friends to make certain calls to him and pump him for information, basically.’
    • ‘So why did he get the impression she was pumping him for information?’
    ask, question, question intensely, question persistently, quiz, interrogate, probe, put questions to, sound out, cross-examine, catechize
    View synonyms

Phrases

  • pump someone's hand

    • Shake a person's hand vigorously.

      • ‘The boy answered as he pumped his hand energetically.’
      • ‘The Marine kept pumping his hand, saying, ‘You're lucky to have that one - she can take care of herself!’’
      • ‘An enthusiastic supporter pumped his hand and spewed out some of his own conclusions.’
      • ‘The man beams, then reaches out and pumps my hand enthusiastically.’
      • ‘He was a little weightlifter looking guy who pumped my hand like he was milking it.’
      • ‘‘You keep that camera out and we're gonna have some fun boy!’ he greeted us like old friends, pumping my hand with startling vigour for an octogenarian invalid.’
      • ‘‘Ellie Johansen,’ I managed to say, as he pumped my hand professionally.’
      • ‘He pumped my hand vigorously and could barely stammer out his name.’
      • ‘He pumped my hand vigorously, his devilish eyes radiating excitement.’
      • ‘Trying desperately to make her way toward Gil, she found herself surrounded by well-wishers who touched her, congratulated her, thanked her, and pumped her hand until she thought her arm would fall off.’
  • pump iron

    • informal Exercise with weights.

      • ‘While he pumps iron to improve his physique, Woods is a renowned couch potato, who likes nothing better than to lounge about with the remote control at his fingertips.’
      • ‘Keith began pumping iron in high school and has continued to hit the weights even at his current heights of success.’
      • ‘I do regular workouts including cardiovascular exercise and pumping iron.’
      • ‘She's sweated it out in a gym stuffed with infomercial gizmos while traveling in Morocco, pumped iron on homemade weight training equipment in Zimbabwe and run up and down more than her fair share of crumbling motel basement stairways.’
      • ‘Interestingly, fitness exercise this time was not confined to pumping iron inside the gym.’
      • ‘But it wasn't just the young and happening who gave up breakfast for pumping iron followed by a decaf, unsweetened cup of coffee with a dash of soya milk, the health wave affected everyone from teenagers to people in their sixties.’
      • ‘For today's media-literate, sophisticated children, pumping iron on a futuristic bench press is clearly more appealing than crouching in a draughty hall pretending to be a little acorn.’
      • ‘I don't believe in lifting weights, or pumping iron.’
      • ‘I changed positions, and they had me in the weight room every day, pumping iron and drinking this nutrient to gain weight.’
      • ‘Living in the city now, he goes to a gymnasium and pumps iron every morning.’

Phrasal Verbs

  • pump something in/into

    • Invest a large amount of money in (something)

      ‘he pumped all his savings into building the boat’
      • ‘The bulk of the money will be pumped into restoring the village's Glebe garden, but cash will also be dished out to pay for hanging baskets and other floral projects.’
      • ‘The site was owned by Waterford City Council, which will pump the money back into urban renewal programmes in the city, making it an even more attractive investment location.’
      • ‘It's envisaged the additional money will be pumped into better health and education programmes, with special priority for the HIV aids crisis in Africa.’
      • ‘There should be no excuse for failure because colossal sums of money and other resources have been pumped into the Authority.’
      • ‘One day, a lobbyist will get enough money and pump enough money into somebody's campaign, and that will be that.’
      • ‘As more and more parents put their kids in private school or homeschool them, the government will have an even bigger excuse to pump less money into the beleaguered public school system.’
      • ‘The Kennedy never has completely recovered, although, unlike The Boat, its owner eventually did pump some money into it.’
      • ‘However much money is pumped into building stadiums, employing professional administrators and coaches, the collapses will continue unless domestic tournaments are properly organized and games played on the best pitches.’
      • ‘Such an upbeat prediction will be warmly welcomed by home owners across Scotland as many have shied away from investing in the stock market and opted instead to pump their savings into property.’
      • ‘Several foreign fund managers said they were taking profits in Singapore and pumping the money into markets that had been lagging behind, such as Malaysia.’
      • ‘I asked Chief Bernard, because I'd heard some residents express concern about how much money had been pumped into the Centre.’
      • ‘I'm guessing it means someone's going to pump a little money into the operation, maybe putting out a few more issues, trying to promote a brand-name that can be exploited for movies or videogames or other venues.’
      • ‘Probably three times as much money was pumped into the venture industry than should have been.’
      • ‘US corporations are not pumping their money into hiring full-time employees who earn a livable wage, receive health care benefits and get defined retirement pensions.’
      • ‘The road network cannot cope with increasing traffic, no matter how much money is pumped in.’
      • ‘Bradford Council will not pump any money into Bradford City Football’
      • ‘The Government is setting totally unrealistic targets and not pumping the money in.’
      • ‘Addressing a meeting of the Coalfield Communities Campaign at the Labour conference, Mr Wilson defended his decision to pump enough money into the struggling pit in order to help to find a new owner.’
      • ‘But the figures were immediately seized upon by critics of the service as unexceptional given how much money has been pumped into the venture.’
      • ‘The only problem with this scenario is that unless someone pumps some money into the company soon, it will simply run out of cash and have to cease trading.’
  • pump something out

    • Produce or emit (something) in large quantities or amounts.

      ‘that little printing press pumped out our brochures for more than twenty years’
      • ‘That's why no matter how many love-against-all-odds-under-Nazi-occupation epics are pumped out in time for Oscar consideration, we eat 'em up, especially when they are as beautifully photographed and paced as Zelary.’
      • ‘And the studios really want to seize on that momentum and pump those DVDs out as fast as they can when they're still in the forefront of people's minds.’
      • ‘Other potters move on to vases, abstract sculptures, maybe even attempt a bust, but Ron just stays the course pumping out ashtray after ashtray.’
      • ‘A generation ago, cheap daytime soaps were pumped out to fill the gaps between ads for domestic cleaning products and provide some moving wallpaper for tranquillised housewives.’
      • ‘And I kind of - after a while, I mean, I did 14 movies in six years, which is more than two a year, and just kind of pumping them out.’
      • ‘The manufacturer, Roche, is pumping it out at full pelt, but global demand has gone berserk.’
      • ‘People like to hear stuff that sounds familiar to them and the North American music industry loves to keep pumping it out.’
      • ‘‘Pollutants were pumped out by the dark satanic mills and we had a century and a half of that,’ he said.’
      • ‘But a great deal of the fleeing capital was earned then and there: Exports were pumped out at a much higher rate than imports were purchased.’
      • ‘I haven't heard any of their post-major label work, but it appears they were pumping it out in spades until recently.’
  • pump something up

    • 1Increase.

      ‘she needs to read and pump up her political grip’
      • ‘These preparers are more likely to illegally pump up your refund to increase their profits.’
      • ‘By the way, this part of OCZ's activity starts looking more and more attractive, because it allows increasing the system performance significantly without pumping up the working frequencies and voltages.’
      • ‘In so doing, these writers further increase the girth of their text, pump up the load on their servers, and ensure that the race against mouthfuls of extraneous words will continue until they run out of time.’
      • ‘Innocent people were being harmed because of the hysteria that was pumped up by the government for its own political purposes.’
      • ‘But because of politicians who use the military to pump up corporate profits instead of defending us, that was a long time ago.’
      1. 1.1Turn up the volume of (music)
        ‘let's pump up those tunes, man’
        • ‘Seems that the music is pumped up so loudly in the mix than it drowns out everything, and since this is a movie where people speak way too softly, lots of dialogue and double crossing plot machinations are missed.’
        • ‘He never even steps into the mela but instead parks his motor at the entrance and pumps the music up loud.’
        • ‘Yet somehow the movie does have fans, and, bless them, at least they can pump the music up with this release.’
        • ‘Got home, put the disk in the real stereo, pumped it up as high as it would go, and I listened to the last movement four times in a row, just to wait for the moment when That Melody rolled out.’
      2. 1.2Give inappropriate support and encouragement to.
        ‘we let them pump up our egos’
        • ‘Though he was in trade sales, he really moved the retail way by encouraging secondary sales to pump up primary trade sales.’
        • ‘Those who really know don't have to get their egos pumped up by leaking to the press.’
        • ‘The more we broadcast his work, the more we pump up his ego and the more he kills.’
        • ‘All that is needed is literacy, but Bloom and his cohorts wish to pump up their own egos by maintaining that the general public needs more.’
        • ‘It pumps up your ego, makes you feel a part of something big, beyond your horizon.’
        • ‘Fashion as an industry is neither self-indulgence nor pumped up egos.’
        • ‘After three weeks, however, she had grown tired of the Tinseltown value system which pumps up star egos with flowers, champagne and enormous Winnebagos while refusing to pay for a single rehearsal.’
        • ‘The problem I see is that everyone is telling this kid how good he is and will be, pumping up that 11 year old ego.’
        • ‘On the contrary, he actively encouraged Hawks to pump up the action whilst fighting the Hays Office tooth and nail over every cut proposed.’
        • ‘He thought, at first, it might pump up his male ego to have so many women lusting after him, but when he went home at night, he couldn't shower long enough to erase the memories.’

Origin

Late Middle English (originally in nautical use): related to Dutch pomp ‘ship's pump’ (earlier in the sense ‘wooden or metal conduit’), probably partly of imitative origin.

Pronunciation

pump

/pəmp//pəmp/

Main definitions of pump in US English:

: pump1pump2

pump2

noun

  • 1A woman's plain, lightweight shoe that has a low-cut upper, no fastening, and typically a medium heel.

    1. 1.1 A man's slip-on patent leather shoe for formal wear.
  • 2Northern English A sports shoe; a plimsoll.

    1. 2.1British A light shoe for dancing.

Origin

Mid 16th century: of unknown origin.

Pronunciation

pump

/pəmp//pəmp/