knocks; knocked; knocking
knocks; knocked; knocking
Learner's definition of KNOCK
1 [no object] : to hit something (such as a door) with the knuckles of your hand or with a hard object (such as a knocker) in order to get people's attention — usually + on
— sometimes used figuratively
I knocked on the door but no one answered.
He knocked on the table to call the meeting to order.
Campaign workers have been knocking on doors throughout the neighborhood. [=have been going to each house or apartment in the neighborhood to talk with the people who live there]
2 always followed by an adverb, adjective, or preposition, [+ object] : to hit (something or someone) in a forceful way
The ball knocked him on the chin.
knock one stick against another = knock two sticks together
She knocked the glass from his hand.
He knocked the baseball over the fence.
The ball hit him in the mouth and knocked out one of his teeth.
The wind knocked him backwards.
The wind almost knocked him off his feet. = The wind almost knocked him to the ground. [=the wind hit him so hard that he almost fell to the ground]
The collision knocked him unconscious/senseless. [=caused him to become unconscious]
The collision knocked him flying. [=sent him flying through the air]
3 always followed by an adverb or preposition : to touch or hit someone or something in a way that is not planned or intended
The dog knocked against the lamp.
My knee accidentally knocked against the table.
Skaters were knocking into each other all over the ice.
I kept knocking against him during the bumpy ride. = He and I kept knocking together during the bumpy ride.
4 [+ object] : to make (something, such as a hole) by hitting something 5 [+ object], informal : to criticize (someone or something) 6 [no object] : to produce a repeated loud noise
The engine was knocking.
The pipes were knocking.
heart is knockinginformal
◊ If your heart is knocking it is beating very hard, usually because you are nervous or excited.
knees are knockinginformal
◊ If your knees are knocking they are shaking because you are nervous or afraid.
knock around[phrasal verb]informalalso Britishknock about
1 a knock around/about (a place) or knock around/about : to spend time in (a place) without having a goal or purpose : to wander around (a place) b knock around/about with (someone)British : to spend time with (another person) 2 a : to be considered or discussed in an informal way over a period of time b knock around (something) or knock (something) around : to consider or talk about (ideas, plans, etc.) in an informal way 3 knock (someone) around/about : to beat or hit (someone) badly or repeatedly — often used figuratively 4 chiefly British : to be lying somewhere within a general area or place
1 knock (something) back or knock back (something) : to drink or swallow (an alcoholic drink) quickly 2 knock (someone) back : to cost (someone) a lot of money
knock down[phrasal verb]
knock (someone or something) down or knock down (someone or something)
1 a : to cause (someone or something) to fall to the ground
b British : to hit and injure or kill (a person or animal) with a vehicle
He hit him on the chin and knocked him down.
The storm knocked down [=knocked over] several big trees.
Rowdy fans knocked down the fence.
We're planning to knock down [=remove, demolish] a wall to create a bigger room.
2 a knock (something) down or knock down (something) : to reduce or lower (a price, an amount, etc.) b knock (someone) down : to cause or persuade (someone) to reduce a price 3 knock down (an amount of money)US, informal : to receive (an amount of money) as income or salary 4 knock down (a shot)basketball or knock (a shot) down : to succeed in making (a shot) especially from a long distance 5 knock (something) downchiefly US, informal or knock down (something) : to say no to (an idea, plan, proposal, etc.) : reject 6 knock (something) downUS or knock down (something) : to take (something) apart
knock headsUS, informal
2 : to use angry or forceful methods to control or punish people — often + together
knock in[phrasal verb]
knock (a run or runner) inbaseball or knock in (a run or runner)
: to cause (a run or runner) to score
knock off[phrasal verb]informal
1 knock off or knock (something) off or knock off (something) : to stop doing something (such as work) — often used as a command to tell someone to stop doing something immediately
knock (something) off or knock off (something)
2 a : to do or make (something) very quickly b : to take (an amount) away from something c US : to steal money or things from (a bank or store) d chiefly British : to steal (something) e US : to make a cheaper copy of (something)
knock (someone) off or knock off (someone)
3 a : to kill (someone) b US : to defeat (someone)
knock out[phrasal verb]
knock (someone or something) out or knock out (someone or something)
1 a : to make (a person or animal) unconscious
b boxing : to defeat (an opponent) with a punch that knocks the opponent down for a certain amount of time c : to defeat (an opponent) in a competition so that the opponent cannot continue d baseball : to cause (a pitcher) to be removed from the game by getting many hits
The drug knocked him out.
The force of the collision knocked him out. [=knocked him cold]
He hit his head against the table when he fell and knocked himself out.
knock (something) out or knock out (something)
2 a : to cause (something) to stop working b : to produce (something) very quickly
knock (yourself) outinformal
3 a : to make (yourself) very tired by doing work b US — used to tell someone to go ahead and do something 4 knock (someone) outinformal : to make a very strong and good impression on (someone)
knock over[phrasal verb]
knock (someone or something) over or knock over (someone or something)
1 a : to cause (someone or something) to fall to the ground b British : to hit and injure or kill (a person or animal) with a vehicle 2 knock (someone) overinformal or knock over (someone) : to greatly surprise or shock (someone)
He was knocked over [=overwhelmed] by the news.
When I found out I had won, you could have knocked me over with a feather. [=I was extremely surprised or astonished]
knock (something) overUS, informal or knock over (something)
3 a : to steal money or things from (a bank or store) b : to steal (something)
knock (someone) cold
: to cause (someone) to become unconscious
knock (someone) deadinformal
: to make a very strong and good impression on (someone)
knock (someone) for a loop
knock someone's head/block offinformal
: to hit someone very hard
knock (someone) sidewaysBritish
: to upset, confuse, or shock (someone) very much
knock (something) on the headBritish, informal
: to cause the end or failure of (something)
knock the (living) daylights out of
knock the stuffing out of
knock together[phrasal verb]
knock (something) together or knock together (something)
: to make or build (something) in a quick or careless way
knock up[phrasal verb]
knock (someone) upinformal or knock up (someone)
1 a chiefly US, impolite : to make (someone) pregnant b British : to wake (someone) by knocking on a door 2 knock (something) upBritish or knock up (something) : to make or produce (something) quickly
Learner's definition of KNOCK
1 a : a hard, sharp hit b : the sound made by a hard hit 2 [count], informal : an experience that makes you less confident or successful for a period of time : a difficult or painful experience
— see also hard knocks (below)
3 [count], informal : a critical or negative comment — often used in U.S. English in the phrase the knock against 4 : a loud noise produced by an engine when it is not working properly
: difficult or painful experiences that people have in their lives or careers