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Definitions for Knock

[1] 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.
[2] to strike in collision; bump: He knocked into a table.
[3] to make a pounding noise: The engine of our car is knocking badly.
[4] Informal . to engage in trivial or carping criticism; find fault.
[5] 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.
[6] to give a sounding or forcible blow to; hit; strike; beat.
[7] to drive, force, or render by a blow or blows: to knock a man senseless.
[8] to make by striking a blow or blows: to knock a hole in the wall.
[9] to strike (a thing) against something else.
[10] Informal . to criticize, especially in a carping manner: He's always knocking everything.
[11] British Slang . to astound; impress greatly.
[12] an act or instance of knocking.
[13] the sound of knocking, especially a rap, as at a door.
[14] a blow or thump.
[15] Informal . an adverse criticism.
[16] the noise resulting from faulty combustion or from incorrect functioning of some part of an internal-combustion engine.
[17] Cricket . an innings.
[18] 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.
[19] knock around /about , Informal . to wander aimlessly or idly; loaf. to mistreat (someone), especially physically. to jar; shake up.
[20] knock back , Slang . to drink (a beverage), especially quickly and heartily: He knocked back two shots of vodka.
[21] 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.
[22] 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.
[23] 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) .
[24] 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.
[25] knock together , to make or construct in a hurry or with little attention to detail: He knocked together a couple of tables.
[26] 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.
[27] have it knocked , Slang . to be assured of success: With a government job, he thought he had it knocked.
[28] 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.
[29] knock the /one's socks off , Informal . to have an overwhelming effect on: The song knocked the socks off the audience.
[30] (tr) to give a blow or push to; strike
[31] (intr) to rap sharply with the knuckles, a hard object, etc, esp to capture attention to knock at the door
[32] (tr) to make or force by striking to knock a hole in the wall
[33] (intr usually foll by against ) to collide (with)
[34] (tr) to bring into a certain condition by hitting or pushing to knock someone unconscious
[35] (tr) informal to criticize adversely; belittle to knock someone's work
[36] Also: pink (intr) (of an internal-combustion engine) to emit a characteristic metallic noise as a result of faulty combustion
[37] (intr) (of a bearing, esp one in an engine) to emit a regular characteristic sound as a result of wear
[38] British slang to have sexual intercourse with (a person)
[39] knock a person into the middle of next week informal to hit a person with a very heavy blow
[40] knock one's head against to have a violent or unpleasant encounter with (adverse facts or circumstances)
[41] knock on the head to daze or kill (a person) by striking on the head effectively to prevent the further development of (a plan)
[42] a blow, push, or rap he gave the table a knock the sound so caused
[43] the sound of knocking in an engine or bearing
[44] informal a misfortune, rebuff, or setback
[45] informal unfavourable criticism
[46] informal (in cricket) an innings or a spell of batting

Words related to Knock

hit, beat, tap, punch, slap, hurt, smack, fell, batter, flatten, damage, whack, bash, slam, blow, box, lick, clip, swipe, swat

Words nearby Knock

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

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 Knock

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

Word origin for Knock

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

Synonyms for Knock

hammering, beating, blow, box, clip, conk, cuff, hit, injury, lick, rap, slap, smack, swat, swipe, thump, whack