Pronunciation (US) IPA (key): /ˈɑks/ (UK) IPA (key): /ˈɒks/ Audio (CA)(file) Noun Singular ox Plural oxen (countable) An ox is an adult male of the cattle family whose sex organs have been removed. The stones had been carried up in wagons pulled by teams of oxen. He's strong as an ox. He'll have no trouble lifting it. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads