1 yo | Definition of yo
\ ˈyō How to pronounce yo (audio) \

Definition of yo

 (Entry 1 of 2)

used especially to call attention, to indicate attentiveness, or to express affirmation

Definition of YO (Entry 2 of 2)

year old; years old

First Known Use of yo

Interjection

1968, in the meaning defined above

History and Etymology for yo

Interjection

Middle English yo, io, interjection

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More Definitions for yo

English Language Learners Definition of yo

US, informal used especially to attract someone's attention, as a greeting, or in response to a greeting

More from Merriam-Webster on yo

Rhyming Dictionary: Words that rhyme with yo

Thesaurus: All synonyms and antonyms for yo

Spanish Central: Translation of yo