Definitions of else:

• adjective:   other than what is under consideration or implied

  Example: "Ask somebody else"

• adverb:   (usually used with `or') if not, then

  Example: "Watch your step or else you may fall"

• adverb:   additional to or different from this one or place or time or manner

  Example: "Nobody else is here"

• name:  A female given name (rare: 1 in 50000 females; popularity rank in the U.S.: #2369)
• name:  A surname (very rare: popularity rank in the U.S.: #38096)