What does the X in A7X mean?

Answer 1

'X' means like times. As in 1x2=1, right? In The Bible it says, "And the lord said to him, whoever slayeth Cain, Vengeance shall be taken upon him sevenfold" Meaning that revenge shall be take seven times worse, than normal. I'm sorry if you don't get it. >.<

Answer 2

Syn got his when they were on a drive and all of them were drunk and Syn said "I am Synyster Gates, and I am Awesome!"

Zacky Vengeance got his stage name because he wanted to get back at all the people in his youth that doubted his potential.

Zacky Vengeance was the one who actually gave Johnny Christ his stage name, saying it fit him.

i dont know about M. Shadow's or the Rev's