Snare is like a real life bear trap; your feet/legs are caught aka you can't MOVE, but you can still ACT/cast/attack; like roots, and the Druid Bear charge is the same except the Druid Bear Charge also acts like "Kick", interrupting and 2sec silencing that school when charged mid-cast lol; Boar Charge doesn't have this extra unfortunately or every hunter would have one instead of those ugly cats and dragonhawks; I have a 70 hunter who used the same boar from 11 to 70 so I'm sure of it ;p

Stun = No control over your actions, can't move/cast/attack