Quote Originally Posted by сэи
The nick is supposed to sound like the English "say", but I'm not sure if the characters are the correct ones.
Say would be "сэй", not "сэи" at all. These (й and и) are two different letters and two different sounds.

Сэи sounds like sa- (from "say") + ee (from "meet"). Actually it's something difficult to pronounce (for Russians at least ).