Source : Webster's Revised Unabridged Dictionary (1913)

Board \Board\, v. t. [imp. & p. p. {Boarded}; p. pr. & vb. n.
   {Boarding}.]
   1. To cover with boards or boarding; as, to board a house.
      ``The boarded hovel.'' --Cowper.

   2. [Cf. {Board} to accost, and see {Board}, n.] To go on
      board of, or enter, as a ship, whether in a hostile or a
      friendly way.

            You board an enemy to capture her, and a stranger to
            receive news or make a communication. --Totten.

   3. To enter, as a railway car. [Colloq. U. S.]

   4. To furnish with regular meals, or with meals and lodgings,
      for compensation; to supply with daily meals.

   5. To place at board, for compensation; as, to board one's
      horse at a livery stable.

Boarding \Board"ing\, n.
   1. (Naut.) The act of entering a ship, whether with a hostile
      or a friendly purpose.

            Both slain at one time, as they attempted the
            boarding of a frigate.                --Sir F.
                                                  Drake.

   2. The act of covering with boards; also, boards,
      collectively; or a covering made of boards.

   3. The act of supplying, or the state of being supplied, with
      regular or specified meals, or with meals and lodgings,
      for pay.

   {Boarding house}, a house in which boarders are kept.

   {Boarding nettings} (Naut.), a strong network of cords or
      ropes erected at the side of a ship to prevent an enemy
      from boarding it.

   {Boarding pike} (Naut.), a pike used by sailors in boarding a
      vessel, or in repelling an attempt to board it. --Totten.

   {Boarding school}, a school in which pupils receive board and
      lodging as well as instruction.

Source : WordNet®

boarding
     n 1: the act of passengers and crew getting aboard a ship or
          aircraft [syn: {embarkation}, {embarkment}] [ant: {debarkation}]
     2: a structure of boards