Another thing to ariesrising:
Phi gets pronounced "Fee" in the case of the men's fraternity "FIJIs"

The full name is Phi (Fie) Gamma Delta, but their nickname is
Phi(Fee)+G(from the Gamma) hence Fiji.

I am not quite sure why they wouldn't be pronounced "Fie G", but I guess from a phonetical standpoint it wouldn't sound as good as Fee Gee (FIJI)!