[ key-oh, key-oh; verb key-oh ]
/ ˈkeɪˈoʊ, ˈkeɪˌoʊ; verb ˈkeɪˈoʊ /
noun, plural kay·os, verb, kay·oed, kay·o·ing.
annul, exterminate, omit, abolish, erase, extinguish, delete, eradicate, blow, KO, TKO, efface, trim, cut, scrub, annihilate, drop, remove, discard, launder
- kayibanda, grégoire,
- kayser-fleischer ring,
- kayser-fleischer rings,
- kaz daği,
Origin of kayo
An Americanism dating back to 1920–25
or K.O., k.o., kay·o
[ noun key-oh, key-oh; verb key-oh ]
/ noun ˈkeɪˈoʊ, ˈkeɪˌoʊ; verb ˈkeɪˈoʊ /
noun, plural KO's.
a knockout in boxing.
verb (used with object), KO'd, KO'ing.
to knock unconscious, especially in a boxing match; knock out.
Origin of KO
First recorded in 1920–25; initial letters of knock out
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural kayos
boxing another term for knockout
verb kayoes, kayos, kayoing or kayoed
boxing another term for knock outSee knockout (verb)
Word Origin for kayo
C20: from the initial letters of knock out
/ (ˈkeɪˈəʊ) /
verb KO's, KO'ing, KO'd, k.o.'s, k.o.'ing or k.o.'d
a slang term for knock outSee knockout
noun plural KO's or k.o.'s
a slang term for knockout
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
spelled-out form of K.O. (knockout), from 1923. Also used in 1920s as a slang reversal of OK.
Online Etymology Dictionary, © 2010 Douglas Harper