knock

[ nok ]

/ nɒk /

verb (used without object)

to strike a sounding blow with the fist, knuckles, or anything hard, especially on a door, window, or the like, as in seeking admittance, calling attention, or giving a signal: to knock on the door before entering.

to strike in collision; bump: He knocked into a table.

to make a pounding noise: The engine of our car is knocking badly.

Informal. to engage in trivial or carping criticism; find fault.

Cards. to end a game, as in gin rummy, by laying down a hand in which those cards not included in sets total less than a specific amount.

verb (used with object)

to give a sounding or forcible blow to; hit; strike; beat.

to drive, force, or render by a blow or blows: to knock a man senseless.

to make by striking a blow or blows: to knock a hole in the wall.

to strike (a thing) against something else.

Informal. to criticize, especially in a carping manner: He's always knocking everything.

British Slang. to astound; impress greatly.

noun

an act or instance of knocking.

the sound of knocking, especially a rap, as at a door.

a blow or thump.

Informal. an adverse criticism.

the noise resulting from faulty combustion or from incorrect functioning of some part of an internal-combustion engine.

Cricket. an innings.

British Slang.

one of a combination of dealers who bid together, rather than against each other, at an auction, and later resell the purchases among themselves.
an auction at which this is done.
the sale of merchandise recently obtained by a dealer at an auction.

Verb Phrases

knock around/about, Informal.

to wander aimlessly or idly; loaf.
to mistreat (someone), especially physically.
to jar; shake up.

knock back, Slang. to drink (a beverage), especially quickly and heartily: He knocked back two shots of vodka.

knock down,

to sell at auction by a blow of the hammer or to a bidder.
to take apart or disassemble, as for facility in handling, storing, shipping, etc.
Slang. to receive, as a salary or a scholastic grade; earn: He knocks down 30 grand a year.
Informal. to lower the price of; reduce: to knock down end-of-season leftovers.
Slang. to embezzle or steal (money).
to cause (a sailing vessel) to heel, as by a gust of wind, to such a degree that it cannot right itself.

knock off,

Informal. to cease activity, especially work: to knock off at five every day.
to stop doing something; quit: Knock it off or you'll get into a mess.
Slang. to dispose of; finish.
Slang. to murder; kill.
Slang. to die.
Slang. to get rid of; reduce.
Slang. to disable or defeat.
Slang. to commit a robbery at; steal from: The gang knocked off a gas station.
Nautical Slang. to blow the head (of a sailing vessel) off the wind.
to imitate, copy, or plagiarize: to knock off designer dresses in cheap materials.

knock out,

to defeat (an opponent) in a boxing match by striking such a blow that the opponent is unable to rise within the specified time.
to render (a person) unconscious: Those sleeping pills knocked me out for ten hours.
to make tired or exhausted: Christmas shopping always knocks me out.
Informal. to produce quickly, hurriedly, or with ease: He knocks out two poems a day.
to damage or destroy: The explosion knocked out the power for several hours.
knock(def 28).

knock over,

to strike (someone or something) from an erect to a prone position: to knock over a lamp.
to distress; overcome: When the announcement came we were completely knocked over.
Slang. to rob, burglarize, or hijack: He knocked over five banks.

knock together, to make or construct in a hurry or with little attention to detail: He knocked together a couple of tables.

knock up,

Slang. to make pregnant.
to exhaust; weary; tire.
to damage; mar: The children knocked up the new table.
to injure; wound: He was afraid to come home from school all knocked up again.
British. to wake up; rouse; call: He knocked us up before dawn.

Idioms for knock

have it knocked, Slang. to be assured of success: With a government job, he thought he had it knocked.

knock out of the box, Baseball. to cause a pitcher to be removed from the box because the pitcher has permitted too many hits to be made. Also knock out.

knock the/one's socks off, Informal. to have an overwhelming effect on: The song knocked the socks off the audience.

Origin of knock

before 1000; 1890–95 for def 4; Middle English knokken, knoken (v.), Old English cnocian, cnucian; cognate with Old Norse knoka to thump, knock

SYNONYMS FOR knock

1 See strike.

SEE SYNONYMS FOR knock ON THESAURUS.COM

OTHER WORDS FROM knock

knock·less, adjective re·knock, verb un·knocked, adjective un·knock·ing, adjective

Words nearby knock

knobbly, knobby, knobcone pine, knobhead, knobkerrie, knock, knock about, knock back, knock cold, knock dead, knock down

British Dictionary definitions for knock out

knock

/ (nɒk) /

verb

(tr) to give a blow or push to; strike

(intr) to rap sharply with the knuckles, a hard object, etc, esp to capture attention to knock at the door

(tr) to make or force by striking to knock a hole in the wall

(intr usually foll by against) to collide (with)

(tr) to bring into a certain condition by hitting or pushing to knock someone unconscious

(tr) informal to criticize adversely; belittle to knock someone's work

Also: pink (intr) (of an internal-combustion engine) to emit a characteristic metallic noise as a result of faulty combustion

(intr) (of a bearing, esp one in an engine) to emit a regular characteristic sound as a result of wear

British slang to have sexual intercourse with (a person)

knock a person into the middle of next week informal to hit a person with a very heavy blow

knock one's head against to have a violent or unpleasant encounter with (adverse facts or circumstances)

knock on the head

to daze or kill (a person) by striking on the head
effectively to prevent the further development of (a plan)

noun

a blow, push, or raphe gave the table a knock
the sound so caused

the sound of knocking in an engine or bearing

informal a misfortune, rebuff, or setback

informal unfavourable criticism

informal (in cricket) an innings or a spell of batting

See also knock about, knock back, knock down, knock off, knock-on, knockout, knock up

Word Origin for knock

Old English cnocian, of imitative origin; related to Old Norse knoka to hit

Idioms and Phrases with knock out (1 of 2)

knock out

Also, knock out cold. Render unconscious by a blow or some other means. For example, It was just a swinging door, but it knocked her out, or Just one of those sleeping pills can knock you out cold. [Late 1500s]

Make tired, exhaust, as in That sightseeing tour knocked me out.

Render useless or inoperative, as in The storm knocked out the power.

See knock off, def. 2.

See knock oneself out.

Idioms and Phrases with knock out (2 of 2)

knock

In addition to the idioms beginning with knock

knock about
knock back
knock cold
knock dead
knock down
knock down with a feather
knock for a loop
knock into a cocked hat
knock it off
knock off
knock oneself out
knock on wood
knock out
knock over
knock over with a feather
knock someone's block off
knock someone's socks off
knock the bottom out of
knock the living daylights out of
knock the socks off
knock together
knock up

also see:

beat (knock) into someone's head
beat (knock) the living daylights out of
(knock) down to size
(knock) off someone's feet
school of hard knocks

BROWSE DICTIONARY

Learning

knock

verb (used without object)

verb (used with object)

noun

Verb Phrases

Idioms for knock

Origin of knock

SYNONYMS FOR knock

OTHER WORDS FROM knock

Words nearby knock

British Dictionary definitions for knock out

verb

noun

Word Origin for knock

Idioms and Phrases with knock out (1 of 2)

Idioms and Phrases with knock out (2 of 2)

BROWSE DICTIONARY

Learning

knock

verb (used without object)

verb (used with object)

noun

Verb Phrases

Idioms for knock

Origin of knock

SYNONYMS FOR knock

OTHER WORDS FROM knock

Words nearby knock

Words related to knock out

(adsbygoogle = window.adsbygoogle || []) .push({}); British Dictionary definitions for knock out

verb

noun

Word Origin for knock

Idioms and Phrases with knock out (1 of 2)

Idioms and Phrases with knock out (2 of 2)

British Dictionary definitions for knock out