It’s Igbo
It is Igbo…not ibo, ebo, eboe, heebo or any such thing. There’s no differential spelling/pronunciation when referring to the people, the language, the culture, etc. It is Igbo. Plain and simple. We are Ndiigbo (Igbo People), from Alaigbo (Igboland), and we speak Igbo. The End.
Signed,
The Management
aka MeAbiriba, Kwenu!