Bolt

Overview
Bolt has a few of meanings:
 * 1) In World of Warcraft it almost always means a roll of cloth processed by a tailor.
 * 2) Sometimes it can refer to an item associated with lightning, as in a bolt of lightning.
 * 3) In other games, a crossbow (ranged weapon) might use ammo with this name. In World of Warcraft, crossbows use arrows.
 * 4) A damage spell that requires time to travel. In many cases, the spell's name will have the word "bolt" in it, but by no means is this an exclusive criteria.
 * Examples:
 * Fireball (Mage, Fire Tree)
 * Wrath (Druid, Balance Tree)
 * Shadowbolt (Warlock, Destruction Tree)