Word parts compose + -er Pronunciation (US) enPR: kəm-pōzʹər, IPA (key): /kəmˈpoʊzər/ (UK) enPR: kəm-pōzʹər, IPA (key): /kəmˈpəʊzə/ Audio (US)(file) Noun Singular composer Plural composers (countable) A composer is a person who writes music. Related words compose Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads