decamillionaire

noun2

1. •
   A person whose wealth amounts to ten million dollars (or other currency unit).
2. •
   (Nigeria) A Nigerian language with at least ten million speakers (namely Hausa, Igbo, and Yoruba).

   • The three major languages (Hausa, Igbo and Yoruba) are called “Decamillionaires” and they serve as regional Lingua Franca. — 2013