Killable is not technically a game term, but more of a classification used at WoWWiki to indicate a boss, mob, or NPC which may exist in lore is killable in-game (Image:WoW Icon 16x16.gif World of Warcraft mostly), but does not speak to whether the creature is considered alive or dead (deceased) in terms of lore or place in the Warcraft timeline.
Killable is not technically a game term, but more of a classification used at WoWWiki to indicate a boss, mob, or NPC which may exist in lore is killable in-game (Image:WoW Icon 16x16.gif World of Warcraft mostly), but does not speak to whether the creature is considered alive or dead (deceased) in terms of lore or place in the Warcraft timeline.