Word parts replace + -ment Pronunciation IPA (key): /rɪˈpleɪsmənt/ Audio (US)(file) Noun Singular replacement Plural replacements (countable) A replacement is something that stands in for something else. I'll be the replacement security guard for the guy who quit. Here is the replacement gadget for the one you lost.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads