Verb
1. pass into or through, often by overcoming resistance;
"The bullet penetrated her chest"2. come to understand
3. become clear or enter one's consciousness or emotions;
"It dawned on him that she had betrayed him""she was penetrated with sorrow"4. enter a group or organization in order to spy on the members;
"The student organization was infiltrated by a traitor"5. make one's way deeper into ar through;
"The hikers did not manage to penetrate the dense forest"6. insert the penis into the vagina or anus of;
"Did the molester penetrate the child?"7. spread or diffuse through;
"An atmosphere of distrust has permeated this administration""music penetrated the entire building"