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Dictionary Definition of trios
trio noun, plural trios. 1. a musical composition for three voices or instruments. 2. a company of three singers or players. 3. 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). 4. any group of three persons or things. [It., from tre three, modelled after duo ] |