- to pierce or pass into or through: The bullet penetrated the wall. The fog lights penetrated the mist.
- to enter the interior of: to penetrate a forest.
- to enter and diffuse itself through; permeate.
- to arrive at the truth or meaning of; understand; comprehend: to penetrate a mystery.
- to obtain a share of (a market): to penetrate the Canadian coffee market.
- to affect or impress (the mind or feelings) deeply.
- to extend influence, usually peacefully, into the affairs of (another country).
- to enter, reach, or pass through something, as by piercing: We penetrated to the interior of the Kasbah.
- to be diffused through something.
- to understand or read the meaning of something.
- to have a deep effect or impact on someone.
- to find or force a way into or through (something); pierce; enter
- to diffuse through (a substance); permeate
- to see through
- (of a man) to insert the penis into the vagina of (a woman)
- to grasp the meaning of (a principle, etc)
- to be understood