The 9mm cartridge generally has 4 different names associated with it. 9x19mm, 9mm, 9mm Parabellum, and 9mm Luger. There are several other 9mm cartridges like 9x18mm Makarov, 9mm Steyr, 9mm Largo, and 9mm Flobert, but those are completely different cartridges.
"It's a gun you loaded on Sunday, and shot all week."
"If God didn't create man equal then Sam Colt had made them equal."
"Fast is fine, but accuracy is everything."