[ 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.
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.
- 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.
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.
- 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.
- 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.
- 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).
- 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.
- 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.
Words nearby knock
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
OTHER WORDS FROM knockknock·less, adjectivere·knock, verbun·knocked, adjectiveun·knock·ing, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for knocked out
/ (nɒk) /
(tr) to give a blow or push to; strike
(intr) to rap sharply with the knuckles, a hard object, etc, esp to capture attentionto knock at the door
(tr) to make or force by strikingto knock a hole in the wall
(intr usually foll by against) to collide (with)
(tr) to bring into a certain condition by hitting or pushingto knock someone unconscious
(tr) informal to criticize adversely; belittleto 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)
- 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
Word Origin for knock
Old English cnocian, of imitative origin; related to Old Norse knoka to hit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Idioms and Phrases with knocked out
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
- 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
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.