Meaning

noun a hole for the escape of gas or air

noun external opening of urinary or genital system of a lower vertebrate

noun a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt

originPartly from Middle French vent, from Latin ventus and partly from French éventer. Cognate with French vent and Spanish viento (“wind”) and ventana (“window”). Doublet of wind.

Etymology from Wiktionary, CC BY-SA 3.0