Trio (noun)

A group of three people or things, especially musicians playing together.

Origin:

Late 18th century: from italian, from latin tres "three".

Examples:

1. The trio of musicians played beautifully together.
2. The trio of friends went on a trip to the beach.
3. The chef presented a trio of desserts for the dinner guests.
4. The company hired a trio of new salespeople.
5. The trio of dancers performed a graceful routine on stage.