Definitions of penetrate:

• verb:   come to understand
• verb:   pass into or through, often by overcoming resistance

  Example: "The bullet penetrated her chest"

• verb:   insert the penis into the vagina or anus of

  Example: "Did the molester penetrate the child?"

• verb:   make one's way deeper into ar through

  Example: "The hikers did not manage to penetrate the dense forest"

• verb:   enter a group or organization in order to spy on the members
• verb:   spread or diffuse through

  Example: "Music penetrated the entire building"

• verb:   become clear or enter one's consciousness or emotions

  Example: "She was penetrated with sorrow"