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Definition of kayo
kayo
/ˈkeɪ.oʊ/
kay · o
Plural:kayoes
•Past Simple:kayoed
•Past Participle:kayoed
•Present Participle:kayoing
kayo Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Rare
kayo Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
North American A knockout in boxing or other combat sports, or a decisive defeat.
Example
"The challenger won the championship title with a stunning third-round kayo."
Synonyms
View all synonyms for kayo• verb
1
North American To knock out an opponent in boxing, or to overwhelm and defeat someone or something decisively.
Example
"Unexpectedly high production costs threatened to kayo the entire film project before shooting began."
Synonyms
View all synonyms for kayo• Rhymes for kayo
• Nearby Words
Word Origin & Etymology
Coined in early 20th-century American sports journalism as a phonetic spelling of the boxing abbreviation 'K.O.' (short for 'knockout').
Cite this Entry
Wordmom. (2026). Definition of Kayo. In Wordmom Dictionary. Retrieved Nov 3, 2026, from https://wordmom.com/dictionary/kayo