IbibioPronunciation: /ˌɪbɪˈbiːəʊ/Definition of Ibibio noun (plural same or Ibibios) 1a member of a people of southern Nigeria. 2 [mass noun] the language of the Ibibio, belonging to the Benue-Congo group and closely related to Efik. It has around 2 million speakers. adjective relating to the Ibibio or their language. Origin:the name in IbibioIbibio in other Oxford dictionaries Definition of Ibibio in the US English dictionary