Volcano, an opening in the Earth's surface which allows molten rock, ash and gases to escape

The various attacks used by characters in Kamen Rider Ryuki are known as "Vents" (such as "Kick Vent", "Sword Vent", etc).

Duct (HVAC), used in heating, ventilation, and air conditioning to deliver and remove air

An outlet of a biological ventilation system that allows the exchange of air; see gas exchange

Plumbing drainage venting, pipes leading from fixtures to the outdoors, usually via the roof

Deep sea vent, or "black smoker", a type of hydrothermal vent found on the ocean floor

Vent (radio series), a dark comedy series produced for BBC Radio 4 in 2006

Flue, a duct, pipe, or chimney for conveying exhaust gases; see also Chimney

Ventrilo, an Internet VoIP chat system service

A narrow slot in a vending machine or slot machine through which to introduce money, coins, or tokens.