Other forms: choruses, chori
A chorus is a group who sing together, or the repeated part of a song. The chorus came in, sing the chorus, join in the chorus.
In a song, the chorus is the section that returns with the same words each time, against the verses, which change. In an opera or musical, the chorus is the singers who are not soloists. In Greek drama, the chorus commented on the action and spoke for the community, which is where the word comes from. Note in chorus, meaning all at once; and a chorus of complaints, meaning many people saying the same thing.
1nounrepeatedThe repeated part of a song.
“Everybody knows the chorus and nobody knows a verse.”
2nounchorusA group who sing together.
“The chorus sang the final hymn while the orchestra played softly.”
3nounonceMany people saying the same thing at once.
“There was a chorus of complaints within about an hour.”
chorus is a group or repeated part.
Greek khoros was a group who danced and sang together, and the space they did it in. The Latin chorus gave English both choir and chorus, one through French and one direct, so the two words are the same word twice.
Proto-Indo-European
*ǵʰer-
Ancient Greek
χορός — group of dancers and singers, choir, chorus; dance accompanied by song; round dance
Latin
chorus — group of dancers and singers; dance
Medieval Latin
chorus — church choir
English, today
chorus
The noun is borrowed from Medieval Latin chorus (“church choir”), Latin chorus (“group of dancers and singers; dance”), from Ancient Greek χορός (“group of dancers and singers, choir, chorus; dance accompanied by song; round dance”); The verb is derived from the noun. a doublet of choir and chore and hora.
Etymology from Wiktionary, CC BY-SA