Yes, vent is a Scrabble word!
...and is worth 7 points in Scrabble, and 9 points in Words with Friends
vent
Verb
1. Give expression or utterance to
2. Expose to cool or cold air so as to cool or freshen
Noun
1. A hole for the escape of gas or air
2. External opening of urinary or genital system of a lower vertebrate
3. A fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
4. A slit in a garment (as in the back seam of a jacket)
5. Activity that frees or expresses creative energy or emotion
What Scrabble words can I make with the letters in vent?
3 Letter Words
2 Letter Words