Revolver (noun)

1. A handgun that has a rotating cylinder containing several chambers for bullets and that is fired by pulling the trigger.
2. Something that rotates or turns around.

Origin:

From french revolver, from revolvere (to turn around) + -er.

Examples:

1. He pulled out a revolver and aimed it at the cashier.
2. The cylinder of a revolver holds six bullets.
3. The revolver was an important weapon in the Wild West.
4. The company's new product is a revolver that can hold up to 8 rounds.
5. The revolver is a type of firearm that uses a rotating cylinder to hold and fire multiple rounds of ammunition.