Noun

• S: (n) chorus (any utterance produced simultaneously by a group) "a chorus of boos"
• S: (n) chorus (a group of people assembled to sing together)
• S: (n) refrain, chorus (the part of a song where a soloist is joined by a group of singers)
• S: (n) chorus, chorus line (a body of dancers or singers who perform together)
• S: (n) chorus, Greek chorus (a company of actors who comment (by speaking or singing in unison) on the action in a classical Greek play)

Verb

• S: (v) chorus (utter in unison) "`yes,' the children chorused"
• S: (v) choir, chorus (sing in a choir)