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| knock [ nok ] |
verb (past and past participle knocked, present participle knock·ing, 3rd person present singular knocks) |
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| Definition: |
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1. intransitive verb hit repeatedly: to strike loudly against something such as a door with the knuckles or an object in order to attract attention
  Someone's knocking at the door.
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2. intransitive verb make loud noise by colliding: to produce a loud and usually repetitive noise by hitting something
was disturbed by a branch knocking against the window all night
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3. transitive verb deal somebody or something blow: to strike somebody or something with a hard blow
knocked in a nail
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4. transitive verb affect somebody or something with blow: to cause something or somebody to be in a particular state with a blow
He knocked me off balance.
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5. transitive and intransitive verb collide with something: to hit against something, especially accidentally, or cause something to hit against something else
The glass broke when I knocked it against the table.
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6. transitive verb make something by striking: to produce something, especially a hole, by means of repeated blows
knocked a hole in the partition
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7. transitive verb criticize somebody or something: to criticize or find fault with somebody or something
(
slang
)
Don't knock it until you've tried it.
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8. intransitive verb automotive produce repeated rapping sound: to make a regular rapping noise that is usually caused by faulty fuel combustion
(
refers to a vehicle or its engine
)
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9. intransitive verb card games end card game: to end a game, especially gin rummy, by striking the table before laying down a hand in which those cards not in sets total less than a specific amount
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noun (plural knocks) |
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| Definition: |
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1. blow or collision: a blow struck against somebody or something, or a collision with somebody or something
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2. sound of knocking: the sound made by a person or object hitting something, especially repeatedly
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3. bad experience: a painful, damaging, or distressing experience
(
informal
)
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4. criticism: a disparaging or critical comment about somebody or something
(
slang
)
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5. automotive repeated rapping sound in engine: a regular rapping noise made by an engine, usually caused by faulty fuel combustion
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| [ Old English cnocian, ultimately an imitation of the sound] |
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knock it off used to demand that somebody stop doing or saying something (slang)
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knock somebody dead to amaze and delight somebody with the quality of a performance (informal)
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