vent vs venthole

vent and venthole both are nouns.

Word	Noun	Adjective	Verb	Adverb
vent	Yes	No	Yes	No
venthole	Yes	No	No	No

As nouns, vent and venthole are synonyms defined as:

Other synonyms of vent include blowhole, vent-hole.

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

vent (verb)	venthole (verb)
expose to cool or cold air so as to cool or freshen
give expression or utterance to