Definitions of vent:

• noun:   external opening of urinary or genital system of a lower vertebrate
• noun:   a hole for the escape of gas or air
• noun:   a slit in a garment (as in the back seam of a jacket)
• noun:   a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
• noun:   activity that releases or expresses creative energy or emotion

  Example: "He gave vent to his anger"

• verb:   expose to cool or cold air so as to cool or freshen
• verb:   give expression or utterance to

  Example: "She vented her anger"

• name:  A surname (very rare: popularity rank in the U.S.: #26953)