verb (used without object)
verb (used with object)
- 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.
- to wander aimlessly or idly; loaf.
- to mistreat (someone), especially physically.
- to jar; shake up.
- 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.
- 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.
Origin of knock
Synonyms for knock
Related Words for knock overknock, disturb, upset, rock, shock, jar, startle, shake, convulse, stun, devastate, wreck, ruin, drop, fell, flatten, equalize, bulldoze, raze, dumbfound
- 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
Word Origin for knock
Old English cnocian (West Saxon cnucian), "to pound, beat; knock (on a door)," likely of imitative origin. Meaning "deprecate, put down" is from 1892. Related: Knocked; knocking. Knock-kneed first attested 1774. Knock-down, drag-out is from 1827. Command knock it off "stop it" is first recorded 1880, perhaps from auctioneer's term for "dispose of quickly:"
At the commencement of the sales, he gave every one that wanted to purchase a paper containing a description of the lands that were to be sold; and, as the sales were cried, he called over the numbers and described the land; and when it got up to one dollar and a quarter an acre, if no body bid, after it was cried two or three times, he would say, knock it off, knock it off. [U.S. Senate record, 1834]
mid-14c., from knock (v.). As an engine noise, from 1899.
Astonish, overcome, as in Their resemblance completely knocked me over. [Mid-1800s] Also see knock for a loop.
Steal or burgle, as in They knocked over one bank and headed for another. [Slang; 1920s]
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