To penetrate is to pass into or through something.(verb)
An example of penetrate is when you force your way into a secured zone and successfully gain entry.
See penetrate in Webster's New World College Dictionary
Origin: < L penetratus, pp. of penetrare, to pierce into, penetrate < base of penitus, inward, far within (< penus, store of food, storeroom, sanctuary of temple of Vesta < IE base *pen-, to feed, food) + (in)trare, enter
See penetrate in American Heritage Dictionary 4
verb pen·e·trat·ed, pen·e·trat·ing, pen·e·trates verb, transitive
Origin: Latin penetrāre, penetrāt-
Origin: , from penitus, deeply.
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