[syn: revolving door, revolver]
The Collaborative International Dictionary of English v.0.48:
Revolver \Re*volv"er\, n.
   One who, or that which, revolves; specifically, a firearm (
   commonly a pistol) with several chambers or barrels so
   arranged as to revolve on an axis, and be discharged in
   succession by the same lock; a repeater.
   [1913 Webster]
WordNet (r) 3.0 (2006):
revolver
    n 1: a pistol with a revolving cylinder (usually having six
         chambers for bullets) [syn: revolver, six-gun, six-
         shooter]
    2: a door consisting of four orthogonal partitions that rotate
       about a central pivot; a door designed to equalize the air
       pressure in tall buildings [syn: revolving door,
       revolver]
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "revolver":
   automatic, blowgun, blowpipe, firearm, flamethrower, gat, gun,
   handgun, heater, musket, peashooter, piece, pistol, repeater,
   rifle, rod, sawed-off shotgun, shooting iron, shotgun, six-gun,
   six-shooter