[key-oh, key-oh; verb key-oh]Slang.
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]Slang.
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
Examples from the Web for kayo
“Kayo Tortoni” is acknowledged the most famous woman character in sports cartoons.What's in the New York Evening Journal|New York Evening Journal
noun plural kayos
verb kayoes, kayos, kayoing or kayoed
Word Origin for kayo
C20: from the initial letters of knock out
verb KO's, KO'ing, KO'd, k.o.'s, k.o.'ing or k.o.'d
noun plural KO's or k.o.'s
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