VENT

(OPENING) [noun] [C] - a small opening which allows air, smoke or gas to enter or escape from an enclosed spaceIf you have a gas fire in a room, you should have some kind of outside vent.Have you seen that photo of Marilyn Monroe standing over an air vent with her skirt blowing up around her?See picture: Car interiorA vent is also a cut in the bottom of a piece of clothing to allow the person wearing it to move more easily.The skirt is long and straight with two side vents.