chorus

chorus (http://definr.com/chorus)

     n 1: any utterance produced simultaneously by a group; "a chorus
          of boos"
     2: a group of people assembled to sing together
     3: the part of a song where a soloist is joined by a group of
        singers [syn: refrain]
     4: a body of dancers or singers who perform together [syn: {chorus
        line}]
     5: a company of actors who comment (by speaking or singing in
        unison) on the action in a classical Greek play [syn: {Greek
        chorus}]
     v 1: utter in unison; " `yes,' the children chorused"
     2: sing in a choir [syn: choir]