What is Vent?

Vent definition and meaning on Dictionary terms:
an opening, as in a wall, serving as an outlet for air, smoke, fumes, or the like.
an opening at the earth’s surface from which volcanic material, as lava, steam, or gas, is emitted.

Zoology. the anal or excretory opening of animals, especially of those below mammals, as birds and reptiles.
the small opening at the breech of a gun by which fire is communicated to the charge.
a means of exit or escape; an outlet, as from confinement.
expression; utterance; release: to give vent to one’s emotions.
Obsolete. the act or fact of venting; emission or discharge.

verb (used with object)
to give free play or expression to (an emotion, passion, etc.): to vent rage.
to give public utterance to: to vent one’s opinions.

to relieve by giving expression to something: He vented his disappointment by criticizing his successor.
to release or discharge (liquid, smoke, etc.).
to furnish or provide with a vent or vents.

verb (used without object)
to be relieved of pressure or discharged by means of a vent.
(of an otter or other animal) to rise to the surface of the water to breathe.