I UK [nɒk] / US [nɑk] verb
Word forms "knock":
present tense I/you/we/they knock he/she/it knocks present participle knocking past tense knocked past participle knocked
1) [intransitive/transitive] to hit something, causing damage or harm

Mike had knocked his leg against a table.

a) [transitive] to hit something and force it somewhere

He knocked a couple of nails into the door.

b) [transitive] to hit someone very hard, so that they fall or become unconscious
knock someone to/off/over/down:

They knocked him to the ground.

The force was powerful enough to knock him off balance.

knock someone unconscious:

The driver had been knocked unconscious by the impact.

c) [transitive] to make a hole or space in something by hitting it many times

They knocked a hole for the doorway.

2) [intransitive] to hit a door with your hand or a knocker so that someone inside knows you are there

They walked up to the door and knocked loudly.

knock on/at:

I knocked on his door but got no reply.

3) [intransitive] if an engine or machine knocks, it makes noises that show it is not working correctly
4) [transitive] informal to criticize someone or something in a way that seems unfair

The newspapers spend too much time knocking government policy.

knock the breath/wind out of someone — to hit or throw someone, so that they cannot breathe easily

knock someone for six/knock someone sidewaysinformal to make someone feel very shocked or upset

Phrasal verbs:

II UK [nɒk] / US [nɑk] noun [countable]
Word forms "knock":
singular knock plural knocks
a) the sound of someone knocking on a door
knock on/at:

There was a loud knock at the door.

b) a series of noises that an engine or machine makes when it is not working correctly
a) an injury or damage caused by being knocked

a nasty knock on the head

b) an instance of knocking someone or something

The watch is built to withstand the occasional knock.

3) something bad or unpleasant that happens to someone
hard knocks:

Life is full of hard knocks.

English dictionary. 2014.

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Look at other dictionaries:

  • knock — ► VERB 1) strike a surface noisily to attract attention. 2) collide forcefully with. 3) force to move or fall with a collision or blow. 4) make (a hole, dent, etc.) in something by striking it. 5) informal criticize. 6) (of a motor) make a… …   English terms dictionary

  • knock — [näk] vi. [ME knokken < OE cnocian, akin to ON knoka, MHG knochen, to press < echoic base > KNACK] 1. to strike a blow or blows with the fist or some hard object; esp., to rap on a door 2. to bump; collide; clash 3. to make a thumping,… …   English World dictionary

  • Knock — (n[o^]k), v. t. 1. To strike with something hard or heavy; to move by striking; to drive (a thing) against something; as, to knock a ball with a bat; to knock the head against a post; to knock a lamp off the table. [1913 Webster] When heroes… …   The Collaborative International Dictionary of English

  • Knock — (n[o^]k), v. i. [imp. & p. p. {Knocked} (n[o^]kt); p. pr. & vb. n. {Knocking}.] [OE. knoken, AS. cnocian, cnucian; prob. of imitative origin; cf. Sw. knacka. Cf. {Knack}.] 1. To drive or be driven against something; to strike against something;… …   The Collaborative International Dictionary of English

  • Knock — ist der Name einer Landschaft in der Nähe von Emden, siehe: Knock (Ostfriesland) eines Marienwallfahrtsortes in Irland, County Mayo, siehe Knock (County Mayo) des in der Nähe gelegenen Flughafens Knock (Ireland West Airport Knock) eines Ortes in… …   Deutsch Wikipedia

  • Knock — Knock, n. 1. A blow; a stroke with something hard or heavy; a jar. [1913 Webster] 2. A stroke, as on a door for admittance; a rap. A knock at the door. Longfellow. [1913 Webster] A loud cry or some great knock. Holland. [1913 Webster] {Knock off} …   The Collaborative International Dictionary of English

  • Knock — Knock. Knock es una localidad de Irlanda situada en el condado de Mayo, provincia de Connacht, en la costa oeste de la isla. Tiene cerca de 600 habitantes. Es famosa porque se dice que aquí se aparecieron la Virgen María, san José, Jesús en forma …   Wikipedia Español

  • Knock-on — may refer to: *Knock on electron *Knock on (rugby) *Knock on effect …   Wikipedia

  • knock up — 1660s in sense of arouse by knocking at the door, from KNOCK (Cf. knock) (v.). However it is little used in this sense in American English, where the phrase means get a woman pregnant (1813), possibly ultimately from knock to copulate with… …   Etymology dictionary

  • knock — [n1] pushing, striking beating, blow, box, clip, conk, cuff, hammering, hit, injury, lick, rap, slap, smack, swat, swipe, thump, whack; concept 189 knock [n2] strong criticism blame, censure, condemnation, defeat, failure, flak, pan, rap, rebuff …   New thesaurus

  • knock in — [phrasal verb] knock (a run or runner) in or knock in (a run or runner) baseball : to cause (a run or runner) to score He knocked in [=batted in, drove in] a run in the second inning with a double to left field. • • • Main Entry: ↑knock …   Useful english dictionary

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