penetration

noun

1.
an attack that penetrates into enemy territory
2.
clear or deep perception of a situation
Derived from:
penetrate
3.
the act of entering into or through something
4.
the ability to make way into or through something
Derived from:
penetrate
5.
the depth to which something penetrates (especially the depth reached by a projectile that hits a target)
6.
the act (by a man) of inserting his penis into the vagina of a woman
Derived from:
penetrate