The bullet penetrated the wall. The fog lights penetrated the mist.
2.
to enter the interior of:
to penetrate a forest.
3.
to enter and diffuse itself through; permeate.
4.
to arrive at the truth or meaning of; understand; comprehend:
to penetrate a mystery.
5.
to obtain a share of (a market):
to penetrate the Canadian coffee market.
6.
to affect or impress (the mind or feelings) deeply.
7.
to extend influence, usually peacefully, into the affairs of (another country).
verb (used without object), penetrated, penetrating.
8.
to enter, reach, or pass through something, as by piercing:
We penetrated to the interior of the Kasbah.
9.
to be diffused through something.
10.
to understand or read the meaning of something.
11.
to have a deep effect or impact on someone.
Origin
1520-30; < Latinpenetrātus (past participle of penetrāre), equivalent to penet-, variant stem of penitus deep down + -r- (probably by analogy with intus inside: intrāre to enter) + -ātus + -ate1
Related forms
penetrator, noun
prepenetrate, verb (used with object), prepenetrated, prepenetrating.
C16: from Latin penetrāre; related to penitus inner, and penus the interior of a house
Word Origin and History for penetrate
v.
1520s, from Latin penetratus, past participle of penetrare "to put or get into, enter into," related to penitus "within, inmost," penus "innermost part of a temple, store of food," penates "household gods." Related: Penetrated; penetrating.