Definition of yo
—used especially to call attention, to indicate attentiveness, or to express affirmation
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Origin and Etymology of yo
Middle English yo, io, interjection
First Known Use: 1968
YO
abbreviation
Definition of YO
year old; years old
YO Defined for English Language Learners
yo
play
interjection
\ˈyō\
Definition of yo for English Language Learners
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—used especially to attract someone's attention, as a greeting, or in response to a greeting
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See words that rhyme with yo Thesaurus: All synonyms and antonyms for yo Spanish Central: Translation of yo
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