Revolver
Re`volv´er
| n. | 1. | 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. |
| Noun | 1. |  revolver - a pistol with a revolving cylinder (usually having six chambers for bullets)Synonyms: six-gun, six-shooter |
| 2. | 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 Synonyms: revolving door |