knockout

[ nok-out ]
/ ˈnɒkˌaʊt /

noun

adjective

that knocks out: the knockout punch.

Origin of knockout

1810–20; 1935–40 for def 4; noun, adj. use of verb phrase knock out
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for knockout

British Dictionary definitions for knockout

knockout
/ (ˈnɒkˌaʊt) /

noun

verb knock out (tr, adverb)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012