\ 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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Dictionary Entries near yo

yn

ynambu

-yne

yo

YO

yob

YOB

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Cite this Entry

“Yo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yo. Accessed 6 Aug. 2020.

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How to pronounce YO (audio)

English Language Learners Definition of yo

US, informal 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

Thesaurus: All synonyms and antonyms for yo

Rhyming Dictionary: Words that rhyme with yo

Spanish Central: Translation of yo

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