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.
- knobcone pine,
- knock about,
- knock back,
- knock cold,
- knock dead,
- knock down
Origin of knock
- 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