penetrate

Short definition from Wiktionary

Verb

1. 1
   To enter into; to make way into the interior of; to pierce.
2. 2
   To achieve understanding of, despite some obstacle; to comprehend; to understand.
3. 3
   To affect profoundly through the senses or feelings; to move deeply.
4. 4
   To infiltrate an enemy to gather intelligence.
5. 5
   To insert the penis into an orifice, such as a vagina, mouth, or anus.
6. 6
   To move a piece past the defending pieces of one's opponent.