What is the meaning of penetrate?

verb

• Pass into or through, often by overcoming resistance.
  • usage: "The bullet penetrated her chest"
  • synonyms: perforate
• Come to understand.
  • synonyms: fathom, bottom
• Become clear or enter one's consciousness or emotions.
  • usage: "It dawned on him that she had betrayed him"; "she was penetrated with sorrow"
  • synonyms: click, get through, dawn, come home, get across, sink in, fall into place
• Enter a group or organization in order to spy on the members.
  • usage: "The student organization was infiltrated by a traitor"
  • synonyms: infiltrate
• Make one's way deeper into or through.
  • usage: "The hikers did not manage to penetrate the dense forest"
• Insert the penis into the vagina or anus of.
  • usage: "Did the molester penetrate the child"
• Spread or diffuse through.
  • usage: "An atmosphere of distrust has permeated this administration"; "music penetrated the entire building"; "His campaign was riddled with accusations and personal attacks"
  • synonyms: permeate, pervade, interpenetrate, diffuse, imbue, riddle