A Chorus

1. A group of singers and dancers in the religious festivals of ancient Greece
2. A group of people in a play or performance who recite together.
3. A group of singers; singing group who perform together.
4. A repeated part of a song, also called the refrain.
5. (jazz) The improvised solo section in a small group performance.
6. A setting or feature in electronic music that makes one voice sound like many.
7. (figuratively) A group of people or animals who make sounds together
8. The noise made by such a group.
9. (theater) An actor who reads the opening and closing lines of a play.