Word parts tooth + paste Pronunciation (UK) IPA (key): /ˈtuːθpeɪst/ (US) IPA (key): /ˈtuθpeɪst/ Audio (UK)(file) Noun Singular toothpaste Plural toothpastes Toothpaste is a paste that is used with a toothbrush to clean the teeth.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads