- Nigeria, Federal Republic of Nigeria - a republic in West Africa on the Gulf of Guinea; gained independence from Britain in 1960; most populous African country
--1 is a kind of African country, African nation
--1 is a part of Africa
--1 has parts:
--1 has members: NigerianAbuja, capital of Nigeria, Nigerian capital; Ibadan; Katsina; Lagos; Maiduguri, Yerwa-Maiduguri; Zaria; Niger, Niger River