yo

contraction

1. (slang) contraction of you and are

- Yo a fool.

interjection

1. (slang) A greeting similar to hi.

- Yo Paulie! How's it going?

2. (slang) An interjection similar to hey.

- Yo, check this out!

3. (military slang) Present! Here!

- Sergeant: Smith? Private Smith: Yo!

noun

1. abbreviation of year/years old

pronoun

1. (colloquial) shortened form of your

- Yo sandwich only has bacon in it. Want some ketchup on that?

2. (Baltimore) third-person singular, familiar

- Yo was tuckin' in his shirt! (Stotko and Troyer 2007)