Pronunciation (UK) IPA (key): /ˈɒt.ə/ (US) enPR: ŏtʹər, IPA (key): /ˈɑtɚ/ or [(ʔ)ɑɾɚ] Homophone: odder (US) Noun Singular otter Plural otters (countable) An otter is an aquatic carnivorous mammal that live near and around water. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads