Source : Webster's Revised Unabridged Dictionary (1913)

Board \Board\, n. [OE. bord, AS. bord board, shipboard; akin to
   bred plank, Icel. bor? board, side of a ship, Goth.
   f?tu-baurd]/> footstool, D. bord board, G. brett, bort. See
   def. 8. [root]92.]
   1. A piece of timber sawed thin, and of considerable length
      and breadth as compared with the thickness, -- used for
      building, etc.

   Note: When sawed thick, as over one and a half or two inches,
         it is usually called a plank.

   2. A table to put food upon.

   Note: The term board answers to the modern table, but it was
         often movable, and placed on trestles. --Halliwell.

               Fruit of all kinds . . . She gathers, tribute
               large, and on the board Heaps with unsparing
               hand.                              --Milton.

   3. Hence: What is served on a table as food; stated meals;
      provision; entertainment; -- usually as furnished for pay;
      as, to work for one's board; the price of board.

   4. A table at which a council or court is held. Hence: A
      council, convened for business, or any authorized assembly
      or meeting, public or private; a number of persons
      appointed or elected to sit in council for the management
      or direction of some public or private business or trust;
      as, the Board of Admiralty; a board of trade; a board of
      directors, trustees, commissioners, etc.

            Both better acquainted with affairs than any other
            who sat then at that board.           --Clarendon.

            We may judge from their letters to the board.
                                                  --Porteus.

   5. A square or oblong piece of thin wood or other material
      used for some special purpose, as, a molding board; a
      board or surface painted or arranged for a game; as, a
      chessboard; a backgammon board.

   6. Paper made thick and stiff like a board, for book covers,
      etc.; pasteboard; as, to bind a book in boards.

   7. pl. The stage in a theater; as, to go upon the boards, to
      enter upon the theatrical profession.

   8. [In this use originally perh. a different word meaning
      border, margin; cf. D. boord, G. bord, shipboard, and G.
      borte trimming; also F. bord (fr. G.) the side of a ship.
      Cf. {Border}.] The border or side of anything. (Naut.)
      (a) The side of a ship. ``Now board to board the rival
          vessels row.'' --Dryden. See {On board}, below.
      (b) The stretch which a ship makes in one tack.

   Note: Board is much used adjectively or as the last part of a
         compound; as, fir board, clapboard, floor board,
         shipboard, sideboard, ironing board, chessboard,
         cardboard, pasteboard, seaboard; board measure.

   {The American Board}, a shortened form of ``The American
      Board of Commissioners for Foreign Missions'' (the foreign
      missionary society of the American Congregational
      churches).

   {Bed and board}. See under {Bed}.

   {Board and board} (Naut.), side by side.

   {Board of control}, six privy councilors formerly appointed
      to superintend the affairs of the British East Indies.
      --Stormonth.

   {Board rule}, a figured scale for finding without calculation
      the number of square feet in a board. --Haldeman.

   {Board of trade}, in England, a committee of the privy
      council appointed to superintend matters relating to
      trade. In the United States, a body of men appointed for
      the advancement and protection of their business
      interests; a chamber of commerce.

   {Board wages}.
      (a) Food and lodging supplied as compensation for
          services; as, to work hard, and get only board wages.
      (b) Money wages which are barely sufficient to buy food
          and lodging.
      (c) A separate or special allowance of wages for the
          procurement of food, or food and lodging. --Dryden.

   {By the board}, over the board, or side. ``The mast went by
      the board.'' --Totten. Hence (Fig.),

   {To go by the board}, to suffer complete destruction or
      overthrow.

   {To enter on the boards}, to have one's name inscribed on a
      board or tablet in a college as a student. [Cambridge,
      England.] ``Having been entered on the boards of Trinity
      college.'' --Hallam.

   {To make a good board} (Naut.), to sail in a straight line
      when close-hauled; to lose little to leeward.

   {To make short boards}, to tack frequently.

   {On board}.
      (a) On shipboard; in a ship or a boat; on board of; as, I
          came on board early; to be on board ship.
      (b) In or into a railway car or train. [Colloq. U. S.]

   {Returning board}, a board empowered to canvass and make an
      official statement of the votes cast at an election.
      [U.S.]

Board \Board\, v. i.
   To obtain meals, or meals and lodgings, statedly for
   compensation; as, he boards at the hotel.

         We are several of us, gentlemen and ladies, who board
         in the same house.                       --Spectator.

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.

Board \Board\, v. t. [F. aborder. See {Abord}, v. t.]
   To approach; to accost; to address; hence, to woo. [Obs.]

         I will board her, though she chide as loud As thunder
         when the clouds in autumn crack.         --Shak.

Source : WordNet®

board
     n 1: a committee having supervisory powers; "the board has seven
          members"
     2: a flat piece of material designed for a special purpose; "he
        nailed boards across the windows"
     3: a stout length of sawn timber; made in a wide variety of
        sizes and used for many purposes [syn: {plank}]
     4: a board on which information can be displayed to public view
        [syn: {display panel}, {display board}]
     5: a flat portable surface (usually rectangular) designed for
        board games; "he got out the board and set up the pieces"
        [syn: {gameboard}]
     6: food or meals in general; "she sets a fine table"; "room and
        board" [syn: {table}]
     7: electrical device consisting of an insulated panel
        containing switches and dials and meters for controlling
        other electrical devices; "he checked the instrument
        panel"; "suddenly the board lit up like a Christmas tree"
        [syn: {control panel}, {instrument panel}, {control board},
         {panel}]
     8: a printed circuit that can be inserted into expansion slots
        in a computer to increase the computer's capabilities
        [syn: {circuit board}, {circuit card}, {card}]
     9: a table at which meals are served; "he helped her clear the
        dining table"; "a feast was spread upon the board" [syn: {dining
        table}]

board
     v 1: get on board of (trains, buses, ships, aircraft, etc.) [syn:
           {get on}] [ant: {get off}]
     2: live and take one's meals at or in; "she rooms in an old
        boarding house" [syn: {room}]
     3: lodge and take meals (at)
     4: provide food and lodging (for); "The old lady is boarding
        three men"

Source : Free On-Line Dictionary of Computing

board
     
        1. In-context synonym for {bboard}; sometimes used even for
        {Usenet} newsgroups.
     
        2. An electronic circuit board.