English

Definition of knock verb from the Oxford Advanced Learner's Dictionary

      

    knock

     verb
    verb
    BrE BrE//nɒk//
     
    ; NAmE NAmE//nɑːk//
     
    Verb Forms present simple I / you / we / they knock
    BrE BrE//nɒk//
     
    ; NAmE NAmE//nɑːk//
     
    he / she / it knocks
    BrE BrE//nɒks//
     
    ; NAmE NAmE//nɑːks//
     
    past simple knocked
    BrE BrE//nɒkt//
     
    ; NAmE NAmE//nɑːkt//
     
    past participle knocked
    BrE BrE//nɒkt//
     
    ; NAmE NAmE//nɑːkt//
     
    -ing form knocking
    BrE BrE//ˈnɒkɪŋ//
     
    ; NAmE NAmE//ˈnɑːkɪŋ//
     
    Injuries, Fear
     
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    at door/window
  1. 1  [intransitive] to hit a door, etc. firmly in order to attract attention synonym rap He knocked three times and waited. knock at/on something Somebody was knocking on the window.
  2. hit
  3. 2  [transitive, intransitive] to hit something, often by accident, with a short, hard blow knock something (against/on something) Be careful you don't knock your head on this low beam. knock against/on something Her hand knocked against the glass. See related entries: Injuries
  4. 3[transitive] to put somebody/something into a particular state by hitting them/it knock somebody/something + adj. The blow knocked me flat. He was knocked senseless by the blow. knock somebody/something doing something She knocked my drink flying. knock somebody/something + adv./prep. The two rooms had been knocked into one (= the wall between them had been knocked down). Synonymshitknock bang strike bump bashThese words all mean to come against something with a lot of force.hit to come against something with force, especially causing damage or injury:The boy was hit by a speeding car.knock to hit something so that it moves or breaks; to put somebody/​something into a particular state or position by hitting them/​it:Someone had knocked a hole in the wall.bang to hit something in a way that makes a loud noise:The baby was banging the table with his spoon.strike (formal) to hit somebody/​something hard:The ship struck a rock.bump to hit somebody/​something accidentally:In the darkness I bumped into a chair.bash (informal) to hit against something very hard:I braked too late, bashing into the car in front.Patterns to hit/​knock/​bang/​bump/​bash against somebody/​something to knock/​bang/​bump/​bash into somebody/​something to hit/​strike the ground/​floor/​wall
  5. 4  [transitive] to hit something so that it moves or breaks knock something + adv./prep. He'd knocked over a glass of water. I knocked the nail into the wall. They had to knock the door down to get in. The boys were knocking (= kicking) a ball around in the back yard. knock something (figurative) The criticism had knocked (= damaged) her self-esteem. Synonymshitknock bang strike bump bashThese words all mean to come against something with a lot of force.hit to come against something with force, especially causing damage or injury:The boy was hit by a speeding car.knock to hit something so that it moves or breaks; to put somebody/​something into a particular state or position by hitting them/​it:Someone had knocked a hole in the wall.bang to hit something in a way that makes a loud noise:The baby was banging the table with his spoon.strike (formal) to hit somebody/​something hard:The ship struck a rock.bump to hit somebody/​something accidentally:In the darkness I bumped into a chair.bash (informal) to hit against something very hard:I braked too late, bashing into the car in front.Patterns to hit/​knock/​bang/​bump/​bash against somebody/​something to knock/​bang/​bump/​bash into somebody/​something to hit/​strike the ground/​floor/​wall
  6. 5[transitive] knock something + adv./prep. to make a hole in something by hitting it hard They managed to knock a hole in the wall.
  7. of heart/knees
  8. 6[intransitive] if your heart knocks, it beats hard; if your knees knock, they shake, for example from fear My heart was knocking wildly. See related entries: Fear
  9. of engine/pipes
  10. 7[intransitive] to make a regular sound of metal hitting metal, especially because there is something wrong
  11. criticize
  12. 8[transitive] knock somebody/something (informal) to criticize somebody/something, especially when it happens unfairly The newspapers are always knocking the England team. ‘E-books?’ ‘Don't knock it—there's a great future in e-books.’ More Like This Silent letters gnarled, gnash, gnat, gnaw, gnome haute cuisine, heir, (NAmE herb), honour, hors d’oeuvre, hour knack, knee, kneel, knife, knight, knit, knob, knock, knot, know, knuckle psalm, psephology, psychic, ptarmigan, pterodactyl, psychology wrangle, wrap, wreath, wreck, wrench, wrestle, wriggle, wring, write, wrong bomb, climb, crumb, doubt, lamb, limb ascent, fascinate, muscle, scene, scissors height, right, sleigh, weight align, campaign, design, foreign, malign, reign, unfeigned balmy, calm, calf, half, yolk autumn, column, condemn, damn, hymn, solemn bristle, fasten, listen, mortgage, soften, thistle, wrestle biscuit, build, circuit, disguise, guilty, league, rogue, vague yacht answer, sword, twoSee worksheet.
  13. Word Origin Old English cnocian, of imitative origin.Extra examples Dobson walked straight into her office without knocking. He had knocked one of the pictures off the wall. He was knocked flying as two policemen came crashing through the door. Her boyfriend had been knocking her about. I accidentally knocked the vase off the table. I knocked my head on one of the beams. Mind you don’t knock that glass over. She knocked timidly on the study door and entered. Someone knocked loudly at the door. The blow knocked him unconscious. The explosion knocked him off his feet. The stick knocked against the wall. I accidentally knocked over his drink. Someone had knocked a hole in the wall. The door’s very low—mind you don’t knock your head! The two rooms had been knocked into one. They had to knock the door down to get into the apartment.Idioms
    bang/knock your/their heads together
     
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    (informal) to force people to stop arguing and behave in a sensible way
    beat/knock the (living) daylights out of somebody
     
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    (informal) to hit somebody very hard several times and hurt them very much Get out or I’ll beat the living daylights out of you!
    beat/kick (the) hell out of somebody/something, knock hell out of somebody/something
     
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    (informal) to hit somebody/something very hard He was a dirty player and loved to kick hell out of the opposition.
    blow/knock somebody’s socks off
     
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    (informal) to surprise or impress somebody very much See related entries: Surprise
    get/knock/lick somebody into shape
     
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    to train somebody so that they do a particular job, task, etc. well It took him just two weeks to knock the new recruits into shape.
    get/knock/lick something into shape
     
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    to make something more acceptable, organized or successful I've got all the information together but it still needs knocking into shape. It shouldn’t take long to get the company back into shape.
    hit/knock somebody for six
     
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    (British English) to affect somebody very deeply The business over the lawsuit had really knocked her for six.
    I’ll knock your block/head off!
     
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    (informal) used to threaten somebody that you will hit them
    (informal) to impress somebody very much You look fabulous—you'll knock 'em dead tonight.
    knock somebody/something into a cocked hat
     
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    (old-fashioned, British English) to be very much better than somebody/something She knocks the rest of the cast into a cocked hat.
    (informal) used to tell somebody to stop making a noise, annoying you, etc. Knock it off, kids—I’m trying to work.
    knock somebody off their pedestal/perch
     
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    to make somebody lose their position as somebody/something successful or admired A lot of teams are looking to knock us off our perch.
    knock something on the head
     
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    (British English, informal) to stop something from happening; to stop doing something The recession knocked on the head any idea of expanding the company. By eleven o’clock we were all tired so we knocked it on the head.
    knock on wood (North American English, saying) (British English touch wood)
     
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    used when you have just mentioned some way in which you have been lucky in the past, to avoid bringing bad luck
    knock somebody sideways
     
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    (informal) to surprise or shock somebody so much that they are unable to react immediately See related entries: Surprise
    knock/talk some sense into somebody
     
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    to try and persuade somebody to stop behaving in a stupid way, sometimes using rough or violent methods Try and talk some sense into her before she makes the wrong decision. Where would I be without you to knock some sense into my head?
    knock spots off somebody/something
     
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    (British English, informal) to be very much better than somebody/something She knocks spots off all the other candidates.
    knock the stuffing out of somebody
     
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    (informal) to make somebody lose their confidence and enthusiasm
    you could have knocked me down with a feather
     
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    (informal) used to express surprise
    Phrasal Verbsknock around…knock somebody aroundknock around togetherknock somebody backknock somebody back somethingknock somethingbackknock somebody down (from something) (to something)knock down somebodyknock somethingdownknock somethingdown (from something) (to something)knock offknock somebodyoffknock somethingoffknock somethingoffknock somebodyoutknock somebody outknock somebodyout (of something)knock somethingoutknock somebodyoverknock somethingtogetherknock upknock somebodyupknock somethingup
See the Oxford Advanced American Dictionary entry: knock