trio
n. countablen. a group of three people or things that belong together. You often use this word for three musicians who play or sing together.
n. a group of three people or things, especially when considered as a unit or performing together. Frequently used in musical contexts to describe a composition for three voices or instruments.
The jazz trio plays at the club every Friday night.
The restaurant is famous for its trio of desserts, featuring small portions of cake, mousse, and sorbet.
The chamber music series concluded with a demanding piano trio, requiring exceptional synchronicity between the violinist, cellist, and pianist throughout the four movements.
Often takes a singular verb when treated as a single unit, though plural verbs are common in British English.