Lock

In World of Warcraft, a lock usually refers to a few of things:
 * Something that keeps a container or door closed. Locks can be unlocked by Engineers with items like, by Blacksmiths with items like , by Rogues' Lockpicking skill, or by a specific key.  Note that not every lock can be unlocked by all methods.
 * An abbreviation for a Warlock.
 * To engage a lock so it becomes locked.