4. A table at which a council or court is held. Hence: a council, convened for business, or any authorised 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)
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.
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 bed.
(Science: mathematics) board and board, to sail in a straight line when close-hauled; to lose little to leeward. To make short boards, to tack frequently. On board. On shipboard; in a ship or a boat; on board of; as, i came on board early; to be on board ship. In or into a railway car or train. Returning board, a board empowered to canvass and make an official statement of the votes cast at an election.