blower

1. A person who blows.
2. A fissure from which firedamp issues, often in quantity for many years.
3. Any device that blows; often, especially, a furnace component or a supercharger.
4. A ducted fan, usually part of a heating, ventilation, and/or air conditioning system.
5. A braggart, or loud talker. (dated)
6. The whale; so called from its habit of spouting up a column of water.
7. A small fish of the Atlantic coast, Sphoeroides maculatus; the puffer.
8. A gun. (US, slang)

الجمع blowers