Word parts extinguish + -er Pronunciation IPA (key): /ɪkˈstɪŋɡwɪʃə(r)/ or /ɛkˈstɪŋɡwɪʃə(r)/ Audio (UK)(file) Noun Singular extinguisher Plural extinguishers (countable) An extinguisher is a person or thing that extinguishes something. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads