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Synonyms

KO

American  
[key-oh, key-oh, key-oh] / ˈkeɪˈoʊ, ˈkeɪˌoʊ, ˈkeɪˈoʊ /
Or K.O.,

noun

plural

KO's
  1. a knockout in boxing.


verb (used with object)

KO'd, KO'ing
  1. to knock unconscious, especially in a boxing match; knock out.

KO British  
/ ˈkeɪˈəʊ /

verb

  1. a slang term for knock out See 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

noun

  1. 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

Etymology

Origin of KO

First recorded in 1920–25; initial letters of knock out

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Beverage giant Coca-Cola KO -0.43%decrease; red down pointing triangle , with its global footprint and growing focus on zero-sugar drinks and energy beverages, also fits the mold of a steady performer.

From The Wall Street Journal

"We got Justin the good look and KO got the rebound and put it back."

From Barron's

Put into the same boxing ring to duke it out, the movie’s unintentional silliness easily KO’s its blips of emotional gravity.

From Salon

Another contender worth mentioning is Lawrence Okolie, 31, the former cruiserweight world champion who announced himself at heavyweight with a one-round KO earlier this month.

From BBC

The Third Way coalition that is poised to take power has selected KO leader Donald Tusk as its candidate for prime minister.

From Reuters