trio meaning and definition

TRIO noun

Definition of trio (noun)

1. the cardinal number that is the sum of one and one and one
   • synonyms: 3, deuce-ace, III, leash, tercet, ternary, ternion, terzetto, three, threesome, tierce, trey, triad, trine, trinity, triplet, troika
2. a musical composition for three performers
3. three performers or singers who perform together
4. a set of three similar things considered as a unit
   • synonyms: triad, triple, triplet
5. three people considered as a unit
   • synonyms: threesome, triad, trinity