insight vs penetration

insight and penetration both are nouns.

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

As nouns, insight and penetration are synonyms defined as:

insight (noun)	penetration (noun)
grasping the inner nature of things intuitively	an attack that penetrates into enemy territory
the clear (and often sudden) understanding of a complex situation	the act of entering into or through something
clear or deep perception of a situation	the act (by a man) of inserting his penis into the vagina of a woman
a feeling of understanding	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