1. a piece of wood sawed thin, and of considerable length and breadth compared with the thickness.
2. a flat slab of wood or other material for some specific purpose: a cutting board.
3. a sheet of wood, cardboard, paper, etc., with or without markings, for some special use, as a checkerboard or chessboard.
4. boards,
• the stage: The play will go on the boards next week.
• the wooden fence surrounding the playing area of an ice-hockey rink.
• a racing course made of wood, used especially for track meets held indoors: This will be his first time running on boards.
5. stiff cardboard or other material covered with paper, cloth, or the like to form the covers for a book.
6. composition material made in large sheets, as plasterboard or corkboard.
7. a table, especially to serve food on.
8. daily meals, especially as provided for pay: The charge at the time was twenty dollars a day for room and board.
9. an official group of persons who direct or supervise some activity: The motion was approved by the board of directors.
10. Nautical.
• the side of a ship.
• one leg, or tack, of the course of a ship beating to windward.
11. a fixed signal or permanent sign regulating traffic.
12. a flat surface, as a wall or an object of rectangular shape, on which something is posted, as notices or stock-market quotations: a bulletin board.
13. surfboard.
14. Computers.
• circuit board (def. 2).
• plugboard (def. 2).
15. circuit board (def. 1).
16. a switchboard.
17. Australian.
• the area of a woolshed where shearing is done.
• a crew of shearers working in a particular woolshed.
• sheep about to be sheared.
18. the edge, border, or side of anything.

19. to cover or close with boards (often followed by up or over): They just boarded up the house and moved away.We had to board over the well to keep animals from getting in there.
20. to furnish with meals, or with meals and lodging, especially for pay: They boarded him for $50 a week.
21. to go on board of or enter (a ship, train, etc.).
22. to allow on board: We will be boarding passengers in approximately ten minutes.
23. to come up alongside (a ship), as to attack or to go on board: The pirate ship boarded the clipper.
24. to approach; accost.

25. to take one's meals, or be supplied with food and lodging at a fixed price: Several of us board at the same rooming house.
26. to hit an opposing player with a board check.

27. across the board,
• betting on a horse or dog to finish first, second, or third, so that any result where a selection wins, places, or shows enables the bettor to collect.
• applying to or affecting every person, class, group, etc.
28. go by the board,
• to go over the ship's side.
• to be destroyed, neglected, or forgotten: All his devoted labor went by the board.
29. on board,
• on or in a ship, plane, or other vehicle: There were several movie stars on board traveling incognito.
• on base: There were two men on board as the next batter came up.
• present and functioning as a member of a team or organization.
• in agreement; aligned (usually followed by with): If we want to achieve our goals, we have to get the CEO on board with our plan.
30. in the theatrical profession: The family has been on the boards since grandfather's time.
31. tread (def. 23).

1. a long wide flat relatively thin piece of sawn timber
• a smaller flat piece of rigid material for a specific purpose
• (in combination)
3. a person's food or meals, provided regularly for money or sometimes as payment for work done (esp in the phrases full board, board and lodging)
4. a table, esp one used for eating at, and esp when laden with food
• a group of people who officially administer a company, trust, etc
• (as modifier)
6. any other committee or council
7. the acting profession; the stage
8. short for
9. stiff cardboard or similar material covered with paper, cloth, etc, used for the outside covers of a book
10. a flat thin rectangular sheet of composite material, such as plasterboard or chipboard
11. mainly US
• a list on which stock-exchange securities and their prices are posted
• the stock exchange itself
12. nautical
• the side of a ship
• the leg that a sailing vessel makes on a beat to windward
13. the part of the floor of a sheep-shearing shed, esp a raised part, where the shearers work
14. the killing floor of an abattoir or freezing works
• any of various portable surfaces specially designed for indoor games such as chess, backgammon, etc
• (as modifier)
• a set of hands in duplicate bridge
• a wooden or metal board containing four slots, or often nowadays, a plastic wallet, in which the four hands are placed so that the deal may be replayed with identical hands
17. the hull of a sailboard, usually made of plastic, to which the mast is jointed and on which a windsurfer stands
18. See above board
19. to be in disuse, neglected, or lost
20. on or in a ship, boat, aeroplane, or other vehicle
21. sweep the board
• (in gambling) to win all the cards or money
• to win every event or prize in a contest
22. to accept (new ideas, situations, theories, etc)

23. to go aboard (a vessel, train, aircraft, or other vehicle)
24. to come alongside (a vessel) before attacking or going aboard
25. to attack (a ship) by forcing one's way aboard
26. to cover or shut with boards
27. to give or receive meals or meals and lodging in return for money or work
28. to receive or arrange for (someone, esp a child) to receive food and lodging away from home, usually in return for payment

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