Language: en
Meaning: To strike or render unconscious(transitive)To strike or bump (someone or something) out.I accidentallyknocked outthe glass in my picture frame.(transitive,idiomatic)To renderunconscious, as by ablowto the head.The boxerknocked outhis opponent in the third round.1918,W[illiam] B[abington] Maxwell, chapter XXII, inThe Mirror and the Lamp, Indianapolis, Ind.:The Bobbs-Merrill Company,→OCLC:In the autumn there was a row at some cement works about the unskilled labour men. A union had just been started for them and all but a few joined. One of these blacklegs was laid for by a picket andknocked outof time.(transitive,informal,idiomatic)To put tosleep.The allergy pillknocked him outfor a good three hours.(intransitive,informal,idiomatic)To fall asleep, especially suddenly.2014, D. G. Driver,Cry of the Sea, page61:That's a put-you-straight-to-sleep book if there ever was one, and Iknockedrightoutafter two paragraphs.(transitive,informal,idiomatic)To exhaust.Running errands all day reallyknocked him out.(transitive,informal,idiomatic)Toimpress,surpassoroverwhelm(someone).(transitive,slang)Todefeatorkill(someone).(transitive,idiomatic)To cause a mechanism to become non-functional by damaging or destroying it.The antitank gunknocked outthe enemy tank.(transitive)Toeliminatefrom a contest or similar.1980,InfoWorld, volume 2, number20:As they were approaching bankruptcy from beingknocked outof the calculator market, they began development on the first commercially available microcomputer, the Altair.2011December 15, Marc Higginson, “Shamrock Rovers 0-4 Tottenham”, inBBC Sport:Tottenham wereknocked outof the Europa League, despite a comfortable victory over Shamrock Rovers in Dublin.; (transitive)To communicate (a message) by knocking.The prisonerknocked outa message on the wall for the prisoner in the adjoining cell.; (transitive,informal)Tocomplete, especially inhaste;knock off.Theyknocked outthe entire project in one night.; To lose thescentofhoundsinfox-hunting.; (obsolete,Oxford Universityslang)To leave collegeafter hours—after half-past ten at night when thedoorshave beenlocked.1861,Thomas Hughes,Tom Brown at Oxford, London: Macmillan and Co., published1883,page503:"Hullo!" he said, getting up; "time for me toknock out, or old Copas will be in bed.[…]"; (transitive,Australia)To obtain or earn (something, often money or food).; (transitive,slang,UK)To sell.
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