A greek word meaning "Alive" or "A living thing." In the Bible
, the word is used to refer to someone who is saved and now has eternal life
Regarding the Chrisian band called Zao, they took that word as their name for this reason, that they are born-again ]Christians] (at least all the original members were). The album "Alive is Dead" was meant to be their final album, and the name has the hidden meaning. Literally, Zao is dead.
He cried out to God for salvation and he recieved zao.