chorus [kôr′əs]
[L, a dance, band of dancers or singers < Gr choros]
1. in ancient Greek drama, and drama like it, a company of performers whose singing, dancing, and narration provide explanation and elaboration of the main action
2. in Elizabethan drama, a person who recites the prologue and epilogue
3. a group of dancers and singers performing together in a modern musical show, opera, etc.
4. the part of a drama, song, etc. performed by a chorus
5. a group of people trained to sing or speak something together simultaneously
6. a simultaneous utterance by many [a chorus of protest]
7. that which is thus uttered
8. music written for group singing
9. that part of a musical composition in which the company joins the solo singer
a) the refrain of a song or hymn following each verse
b) the main tune, as of a jazz piece, following the introduction
c) Jazz a solo, usually an improvised one based on the main tune of a piece
vt., vi.
to sing, speak, or say in unison
in chorus
in unison

English World dictionary. . 2014.