penetration vs insight

penetration and insight both are nouns.

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

As nouns, penetration and insight are synonyms defined as:

penetration (noun)	insight (noun)
an attack that penetrates into enemy territory	grasping the inner nature of things intuitively
the act of entering into or through something	the clear (and often sudden) understanding of a complex situation
the act (by a man) of inserting his penis into the vagina of a woman	clear or deep perception of a situation
the depth to which something penetrates (especially the depth reached by a projectile that hits a target)	a feeling of understanding
the ability to make way into or through something
clear or deep perception of a situation