penetration vs penetrate

penetration is a noun but penetrate is not a noun.

Word	Noun	Adjective	Verb	Adverb
penetration	Yes	No	No	No
penetrate	No	No	Yes	No

penetration (noun)	penetrate (noun)
an attack that penetrates into enemy territory
the act of entering into or through something
the act (by a man) of inserting his penis into the vagina of a woman
the depth to which something penetrates (especially the depth reached by a projectile that hits a target)
the ability to make way into or through something
clear or deep perception of a situation

penetration (verb)	penetrate (verb)
	come to understand
	become clear or enter one's consciousness or emotions
	pass into or through, often by overcoming resistance
	insert the penis into the vagina or anus of
	spread or diffuse through
	make one's way deeper into or through
	enter a group or organization in order to spy on the members