KO


Meaning of KO in English

I. KO 1 /ˌkeɪ ˈəʊ $ -ˈoʊ/ BrE AmE

the abbreviation of knockout

II. KO 2 BrE AmE verb ( past tense and past participle KO’d , third person singular KO’s ) [transitive] informal

to hit someone so hard that they become unconscious

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.