Nigerian language is a collective term for the languages spoken in Nigeria, which include EDO (3 letters), Efik (4 letters), Ibo (3 letters) and Igbo (4 letters). These languages are spoken by different ethnic groups in Nigeria and are part of the Niger-Congo language family. EDO is spoken mainly in the southern part of Nigeria, while Efik is spoken in the southeastern region. Ibo is spoken in the southeastern region as well, while Igbo is spoken in the south-central region.