(n): (military) an offensive against an enemy (using weapons)
(n): clear or deep perception of a situation
(n): knowledge gained by perceiving
(n): the act of entering into or through something
(n): the act of entering
(n): the ability to make way into or through something
(n): the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment
(n): the depth to which something penetrates (especially the depth reached by a projectile that hits a target)
(n): the extent downward or backward or inward
(n): the act (by a man) of inserting his penis into the vagina of a woman
(n): the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur