Definition of Yay

Interjection: yay yey

An expression of happiness and satisfaction or relief
"Yay! It's about time!";
- hooray

Adverb: yay yey

Of this size, to this extent
"when I was yay big"

Noun: Yay

A branch of the Tai languages

See also:
yaws
yays

Anagrams containing the word yay