Pronunciation: (mask, mäsk),[key] —n. 1. a form of aristocratic entertainment in England in the 16th and 17th centuries, originally consisting of pantomime and dancing but later including dialogue and song, presented in elaborate productions given by amateur and professional actors.
2. a dramatic composition for such entertainment.
3. a masquerade; masked ball; revel.
4. mask (def. 14). Also,mask.