oribiPronunciation: /ˈɒrɪbi/Definition of oribi noun (plural same or oribis) a small antelope of the African savannah, having a reddish-fawn back, white underparts, and short vertical horns. Ourebia ourebi, family Bovidae Origin: late 18th century: from Afrikaans, from Khoikhoioribi in other Oxford dictionaries Definition of oribi in the US English dictionary