http://wiki.guildwars2.com/wiki/Stun
List of skills that break stun.
---------- Post added 2012-02-28 at 11:31 PM ----------
I get where you're coming from. Like I said, I don't know why exactly they chose to have a new term, but I'm sure they have their reasons (like RP terminology being one possible reason; unique identity might be another - I'm sure the developers want to break away from the idea of copying WoW as much as they can)