trio

noun (plural trios)

• a set or group of three people or things:the hotel was run by a trio of brothers
• a group of three musicians:a jazz trio
• a composition written for three musicians:Chopin’s G minor Trio
• the central, typically contrastive, section of a minuet, scherzo, or march.
• (in piquet) a set of three aces, kings, queens, jacks, or tens held in one hand.