\ˈyō \

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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Dictionary Entries near yo

yn

ynambu

-yne

yo

YO

YOB

yob

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Time Traveler for yo

The first known use of yo was in 1968

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English Language Learners Definition of yo

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

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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

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the figure or shape of a crescent moon

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