Meaning of trio

tri•o

Pronunciation: (trē'ō), [key]
— pl. tri•os.
  1. a musical composition for three voices or instruments.
  2. a company of three singers or players.
  3. any group of three persons or things.
  4. a subordinate division of a minuet, scherzo, march, etc., usually in a contrasted key and style (perhaps originally written for three instruments or in three parts).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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