コーラス (kōrasu) means “chorus” | MotiTan Japanese Dictionary

More examples

指揮者の合図で、コーラスが始まります。shi ki sha no ai zu de kō ra su ga haji ma ri ma su

The chorus begins at the conductor's signal.

Refers to several voices acting as one or to the recurring section that gives a song its recognizable shape.

合唱団gasshōdan: A group of singers organized to perform together.
合唱gasshō: The act of singing together with several voices.

複数人が声をそろえて歌うこと。また、その歌を歌う集団。fuku sū nin ga koe o so ro e te uta u ko to ma ta so no uta o uta u shū dan

コーラス (kōrasu) entered Japanese from English chorus, which came through Latin chorus from Greek khoros, meaning a group that sings and dances.

In Japanese, コーラス (kōrasu) often refers to group singing or a choir, while English chorus can also mean the repeated part of a song.