We don't have any synonyms for yo yet.
Think yo belongs in the thesaurus? Recommend it and we'll take a look.
Definition of yo:
(interjection) :
a greeting similar to
hi; an interjection similar to
hey
"yo Paulie! How's it going?"
(n) :
gender-neutral third-person singular pronoun, primarily in subject position
"did you see that? Yo went outside."