Pronunciation IPA (key): /ˈkɔːrəs/ Audio (US)(file) Noun Singular chorus Plural choruses (countable) A chorus is a musical group, usually in four parts. He is in the school chorus. (countable) A chorus is the part of a song that is repeated. I don't know many of the words, but I can sing the chorus.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads