n.
1. A long flat slab of sawed lumber; a plank.
2. A flat piece of wood or similarly rigid material adapted for a special use.
3. Games A flat surface on which a game is played.
4. The hard cover of a book.
5. boards A theater stage.
6.
a. A table, especially one set for serving food.
b. Food or meals considered as a whole: board and lodging.
7. A table at which official meetings are held; a council table.
8. An organized body of administrators or investigators: a board of trustees; a board of directors.
9. An electrical-equipment panel.
10. Computer Science A circuit board.
11. Sports
a. A scoreboard.
b. A tote board.
c. boards The wooden structure enclosing an ice hockey rink.
d. A diving board.
e. A surfboard.
f. A snowboard.
12. Basketball
a. A backboard.
b. A rebound.
13. Nautical
a. The side of a ship.
b. A leeboard.
c. A centerboard.
14. Obsolete A border or an edge.
15. A usually large, vertically positioned flat surface used for writing or posting, especially:
a. A blackboard.
b. A bulletin board.