GEM - A precious stone, usually of substantial monetary value or prized for its beauty or shine.
GUM - The flesh round the teeth.
GUN - A very portable, short firearm, for hand use, which fires bullets or projectiles, such as a handgun, revolver, pistol, or Derringer.
MEN - Plural form of man.
MUG - Easily fooled, gullible.
NUN - A member of a Christian religious community of women who live by certain vows and usually wear a habit, in some cases living together in a cloister.
EMU - A large flightless bird native to Australia, Dromaius novaehollandiae.
GNU - A large antelope native to Africa having curved horns.
MEG - Common abbreviation for many/any unit having the SI prefix mega-, such as megahertz.
MENU - The details of the food to be served at a banquet; a bill of fare.
GUNMEN - Plural form of gunman.