p.pr. & ·vb.n. of board.
2. boarding ·noun the act of entering a ship, whether with a hostile or a friendly purpose.
3. boarding ·noun the act of covering with boards; also, boards, collectively; or a covering made of boards.
4. boarding ·noun the act of supplying, or the state of being supplied, with regular or specified meals, or with meals and lodgings, for pay.