Definition of Knock out

1. Verb. Eliminate. "Knock out a target"


2. Verb. Knock unconscious or senseless. "They want to knock out the prisoners "; "The boxing champion knocked out his opponent in a few seconds"
Exact synonyms: Kayo, Knock Cold
Generic synonyms: Beat, Beat Up, Work Over
Derivative terms: Knockout

3. Verb. Destroy or break forcefully. "The windows were knocked out"
Generic synonyms: Remove, Take, Take Away, Withdraw

4. Verb. Overwhelm with admiration. "All the guys were knocked out by her charm"

5. Verb. Empty (as of tobacco) by knocking out. "Knocked out a pipe"
Generic synonyms: Empty

Definition of Knock out

1. Verb. (transitive) To strike or bump (someone or something) out. ¹

2. Verb. (transitive idiomatic) To render unconscious, as by a blow to the head. ¹

3. Verb. (transitive idiomatic) To put to sleep. ¹

4. Verb. (transitive idiomatic) To exhaust. ¹

5. Verb. (transitive idiomatic) To complete, especially in haste; knock off. ¹

6. Verb. (transitive idiomatic) To cause a mechanism to become non-functional by damaging or destroying it. ¹

7. Verb. (sports) To eliminate. ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Knock Out

knock cold
knock down
knock for a loop
knock into a cocked hat
knock it off
knock knee
knock knock
knock knock joke
knock knock jokes
knock knocks
knock off
knock off someone's block
knock on
knock on wood
knock out (current term)
knock out of the box
knock over
knock rummy
knock someone's block off
knock someone's socks off
knock someone off his perch
knock the living daylights out of
knock together
knock up
knockabout
knockabouts
knockback
knockbacks
knockdown

Literary usage of Knock out

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

1. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"... bottom or "knock-out" where the work is to be knocked back; and combination dies which cut and draw at one stroke of the press. ..."

2. The Slang Dictionary: Etymological, Historical, and Anecdotal by John Camden Hotten (1874)
"Knock off, to give over, or abandon. A saying used by workmen in reference to dinner or other meal times, for upwards of two centuries. knock out, in racing ..."

3. Roger of Wendover's Flowers of History: Comprising the History of England by Matthew Paris, Roger (1849)
"... still refused to ransom himself or to put an end to his sufferings, on which the king ordered his agents to knock out one of his cheek-teeth daily, ..."

4. Roger of Wendover's Flowers of History: Comprising the History of England by Roger, Matthew Paris (1849)
"... still refused to ransom himself or to put an end to his sufferings, on which the king ordered his agents to knock out one of his cheek-teeth daily, ..."

5. Punches and Dies: Layout, Construction and Use by Frank Arthur Stanley (1919)
"... the blanking die B carries a knock out or ejector which is drilled and counterbored from the rear to receive the two piercing punches C. The blanking ..."

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