What does Emeka mean?
A short form of Chukwuemeka, Igbo for 'God has done great / done much' (Chukwu 'God' + emeka 'has done a great deed'). Masculine.
What does Chidi mean?
Igbo, 'God exists / there is a God,' from Chi ('God, personal deity') + di ('is, exists'). A short form of fuller names like Chidiebere ('God is merciful') or Chidinma. Chiefly masculine but used for either sex.