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Interjection: yay  yey
  1. An expression of happiness and satisfaction or relief
    "Yay! It's about time!";
    - hooray
Adverb: yay  yey
  1. Of this size, to this extent
    "when I was yay big"
Noun: Yay
  1. A branch of the Tai languages

Type of: Tai

Encyclopedia: Yay