penetration has definitions from the fields of sexuality,military
1
[ noun ] (military) an attack that penetrates into enemy territory

Synonyms

incursion

Used in print

(87th Congress, 1st Session. Congressional Record....)

Once the full extent of_this Russian military penetration of Cuba was clear , President_Kennedy announced we would take whatever action was appropriate to prevent this , even if we had to go it alone .

A naval_blockade would be thoroughly in line with the Monroe_Doctrine , would be a relatively simple operation to carry_out , and would bring an abrupt end to Soviet penetration of our hemisphere `` .

2
[ noun ] the act of entering into or through something

Examples

"the penetration of upper management by women"

Used in print

(LeRoy Fothergill, "Biological Warfare", in Peter...)

Certain other properties of small particles , in_addition_to those already mentioned in_connection_with penetration of the respiratory_tract , are noteworthy in defense considerations .

3
[ noun ] clear or deep perception of a situation

Synonyms

insight

Used in print

(High Fidelity, 11:10...)

Returning once_again to the Schnabel reissue , I am beguiled anew by the magnificence of this pianist 's musical penetration .

Related terms

perception penetrate

4
[ noun ] the depth to which something penetrates (especially the depth reached by a projectile that hits a target)

Related terms

depth

5
[ noun ] the ability to make way into or through something

Examples

"the greater penetration of the new projectiles will result in greater injuries"

Related terms

ability penetrate

6
[ noun ] (sexuality) the act (by a man) of inserting his penis into the vagina of a woman
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