vent
noun
a hole for the escape of gas or air
external opening of urinary or genital system of a lower vertebrate
a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt
Synonymsvolcanoa slit in a garment (as in the back seam of a jacket)
activity that frees or expresses creative energy or emotion
“she had no other outlet for her feelings”
“he gave vent to his anger”
verb
give expression or utterance to
“She vented her anger”
“The graduates gave vent to cheers”
expose to cool or cold air so as to cool or freshen
“air the old winter clothes”
“air out the smoke-filled rooms”
Source: WordNet 3.1, Princeton University