- revolver, six-gun, six-shooter - a pistol with a revolving cylinder (usually having six chambers for bullets)
--1 is a kind of pistol, handgun, side arm, shooting iron
--1 has particulars: Colt - revolving door, revolver - a door consisting of four orthogonal partitions that rotate about a central pivot; a door designed to equalize the air pressure in tall buildings
--2 is a kind of door