definition of
penetrate

[1] #1 penetrate v. [perforate] pass into or through, often by overcoming resistance; "The bullet penetrated her chest". wn

[2] #2 penetrate v. [fathom, bottom] come to understand. wn

[3] #3 penetrate v. [click, get through, dawn, come home, get across, sink in, fall into place] become clear or enter one's consciousness or emotions; "It dawned on him that she had betrayed him"; "she was penetrated with sorrow". wn

[4] #4 penetrate v. [infiltrate] enter a group or organization in order to spy on the members; "The student organization was infiltrated by a traitor". wn

[5] #5 penetrate v. make one's way deeper into or through; "The hikers did not manage to penetrate the dense forest". wn