penetration

(noun) an attack that penetrates into enemy territory. Synonyms: incursion.

(noun) clear or deep perception of a situation. Synonyms: insight.

(noun) the act of entering into or through something. Example: "The penetration of upper management by women."

(noun) the ability to make way into or through something. Example: "The greater penetration of the new projectiles will result in greater injuries."

(noun) the depth to which something penetrates (especially the depth reached by a projectile that hits a target).

(noun) the act (by a man) of inserting his penis into the vagina of a woman.