Definition of Knock

1. Noun. The sound of knocking (as on a door or in an engine or bearing). "The knocking grew louder"

Exact synonyms: Knocking
Generic synonyms: Sound

2. Verb. Deliver a sharp blow or push :. "He knocked the glass clear across the room"
Exact synonyms: Strike Hard
Generic synonyms: Strike
Also: Knock Cold, Knock Down, Knock Out, Knock Over

3. Noun. Negative criticism.
Exact synonyms: Roast
Generic synonyms: Criticism, Critique
Derivative terms: Roast

4. Verb. Rap with the knuckles. "Knock on the door"
Generic synonyms: Knap, Rap
Derivative terms: Knocker, Knocking

5. Noun. A vigorous blow. "He got a bang on the head"
Exact synonyms: Bang, Bash, Belt, Smash
Generic synonyms: Blow, Bump
Derivative terms: Bang, Bash, Belt, Smash, Smash, Smash

6. Verb. Knock against with force or violence. "My car bumped into the tree"
Exact synonyms: Bump
Generic synonyms: Collide With, Hit, Impinge On, Run Into, Strike
Derivative terms: Bump, Bumper
Also: Bump Into, Knock About, Knock Against

7. Noun. A bad experience. "The school of hard knocks"
Generic synonyms: Bad Luck, Misfortune

8. Verb. Make light, repeated taps on a surface. "He was tapping his fingers on the table impatiently"
Exact synonyms: Pink, Rap, Tap
Generic synonyms: Go, Sound
Derivative terms: Rap, Tap, Tap, Tap, Tapping

9. Noun. The act of hitting vigorously. "He gave the table a whack"
Exact synonyms: Belt, Rap, Whack, Whang
Generic synonyms: Blow
Derivative terms: Rap, Whack, Whang, Whang

10. Verb. Sound like a car engine that is firing too early. "The car pinked when the ignition was too far retarded"
Exact synonyms: Ping, Pink
Generic synonyms: Go, Sound
Derivative terms: Knocking, Ping

11. Verb. Find fault with; express criticism of; point out real or perceived flaws. "Don't knock the food--it's free"

Definition of Knock

1. v. i. To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.

2. v. t. To strike with something hard or heavy; to move by striking; to drive (a thing) against something; as, to knock a ball with a bat; to knock the head against a post; to knock a lamp off the table.

3. n. A blow; a stroke with something hard or heavy; a jar.

4. v. i. To practice evil speaking or fault-finding; to criticize habitually or captiously.

5. v. t. To impress strongly or forcibly; to astonish; to move to admiration or applause.

Definition of Knock

1. Noun. An abrupt rapping sound, as from an impact of a hard object against wood ¹

2. Noun. An impact. ¹

3. Noun. (cricket) a batsman's innings. ¹

4. Noun. (automotive) A type of abnormal combustion occurring in spark ignition engines caused by self-ignition or the characteristic knocking sound associated with it. ¹

5. Verb. To rap one's knuckles against something, especially wood. ¹

6. Verb. To bump or impact. ¹

7. Verb. (colloquial) To denigrate, undervalue. ¹

8. Verb. (soccer) To pass, kick a ball towards another player. ¹

¹ Source:

Definition of Knock

1. to strike sharply [v -ED, -ING, -S]

Medical Definition of Knock

1. 1. Colloquialism for a blow, especially a blow to the head. 2. A sound simulating that of a blow or rap. (05 Mar 2000)

Knock Pictures

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Lexicographical Neighbors of Knock

knobcone pine
knock (current term)
knock-for-knock agreement
knock-knock joke
knock-knock jokes
knock-on effect
knock-on effects

Literary usage of Knock

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Merchants' Magazine and Commercial Review by Isaac Smith Homans, William B. Dana (1849)
"KENTISH knock. — Off the South end of the Kentish knock а large Nun Buoy, colored Red, marked KK in large Black Letters, and surmounted by a Staff and Globe ..."

2. Macbeth by William Shakespeare, Thomas Marc Parrott (1904)
"[knocking within] knock, knock, knock ! Who's there, i' the name of Beelzebub ? Here 's a farmer, that hanged himself on th' expectation of plenty: come in ..."

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