vent

noun

1. Rare the action of escaping or passing out, or the means or opportunity to do this; issue; outlet
2. expression; release: giving vent to emotion
3. 1. a small hole or opening to permit passage or escape, as of a gas
   2. ☆ a small triangular window or, now esp., an opening on or beneath the dashboard, for letting air into the passenger compartment of a motor vehicle
4. in early guns, the small hole at the breech through which a spark passes to set off the charge
5. the opening in a volcano from which gas and molten rock erupt
6. Zool. the excretory opening in animals; esp., the external opening of the cloaca in birds, reptiles, amphibians, and fishes

transitive verb

1. to make a vent in or provide a vent for
2. to allow (steam, gas, etc.) to escape through an opening
3. to give release or expression to
4. to relieve or unburden by giving vent to feelings: to vent oneself in curses

noun

transitive verb