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a. A long flat slab of sawed lumber; a plank.
b. A long flat slab of another material, used as a structural member.
2. A flat, rigid, often rectangular piece of material used as a surface upon which to work: a cutting board; an ironing board.
3. A flat piece of rigid material designed to display information, especially:
a. A blackboard.
b. A bulletin board.
c. A scoreboard.
d. A toteboard.
4. Sports
a. A flat piece of material designed or equipped to be ridden as a sport, especially a snowboard, skateboard, or surfboard.
b. A diving board.
c. A backboard.
5. A flat, rigid piece of material on which a game is played, such as a checkerboard or chessboard.
a. A table at which official meetings are held; a council table.
b. An organized body of administrators or investigators: a board of trustees; a board of directors.
a. A table, especially one set for serving food.
b. Food or meals considered as a whole: board and lodging.
8. boards
a. Sports The wooden structure enclosing an area for skating, such as the ice on which hockey is played, or enclosing a playing area, as for indoor soccer.
b. A theater stage.
9. Basketball A rebound.
a. An electrical-equipment panel.
b. Computers A circuit board.
11. Nautical
a. The side of a ship.
b. A leeboard.
c. A centerboard.
12. Obsolete A border or edge.
v. board·ed, board·ing, boards
1. To cover or close with boards: board up a broken window.
a. To furnish with meals in return for pay.
b. To house where board is furnished: board a horse at a stable.
a. To enter or go aboard (a vehicle or ship).
b. To allow (passengers) on board.
c. Nautical To come alongside (a ship).
4. Sports To force (an opposing hockey player) into the boards with a body check.
5. Obsolete To approach.
1. To receive meals or food and lodging as a paying customer.
2. Sports To use a snowboard, skateboard, surfboard, or similar item.
across the board
So as to affect or include all people, classes, or categories: raised taxes across the board.
on board
1. Aboard.
2. Ready to participate or be included; amenable: The entire class was on board for the excursion to the park.

[Middle English bord, from Old English.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.boards - the stage of a theater; "most actors love to stride the boards"
theater stage, theatre stage - a stage in a theater on which actors can perform
plural, plural form - the form of a word that is used to denote more than one
2.boards - the boarding that surrounds an ice hockey rinkboards - the boarding that surrounds an ice hockey rink
boarding - a structure of boards
ice hockey rink, ice-hockey rink - an ice rink for playing ice hockey
plural, plural form - the form of a word that is used to denote more than one
References in classic literature ?
You are the best actress we've got, and there'll be an end of everything if you quit the boards," said Jo.
Will Overton's berry field lay beside the road and there was a pile of boards.
Fuchs selected boards from a pile of planks grandfather had hauled out from town in the fall to make a new floor for the oats-bin.
But as for the old structure of our story, its white-oak frame, and its boards, shingles, and crumbling plaster, and even the huge, clustered chimney in the midst, seemed to constitute only the least and meanest part of its reality.
Upon her head boards, in large gilt letters, he read Bouton de Rose, --Rose-button, or Rose-bud; and this was the romantic name of this aromatic ship.
Her home was unthinkably filthy; you could not enter by the front door at all, owing to the mattresses, and when you tried to go up the backstairs you found that she had walled up most of the porch with old boards to make a place to keep her chickens.
During this aside between Mose and Pete, two empty casks had been rolled into the cabin, and being secured from rolling, by stones on each side, boards were laid across them, which arrangement, together with the turning down of certain tubs and pails, and the disposing of the rickety chairs, at last completed the preparation.
I had started a number of these people out -- the bravest knights I could get -- each sandwiched between bul- letin-boards bearing one device or another, and I judged that by and by when they got to be numerous enough they would begin to look ridiculous; and then, even the steel-clad ass that HADN'T any board would himself begin to look ridiculous because he was out of the fashion.
I fetched the pig in, and took him back nearly to the table and hacked into his throat with the axe, and laid him down on the ground to bleed; I say ground because it was ground -- hard packed, and no boards.
All the old graves were sunken in, there was not a tombstone on the place; round-topped, worm-eaten boards stag- gered over the graves, leaning for support and finding none.
He's tall, and lazy, and sly, and sneaky, and ruther cowardly, too, but kind of good-natured, and wears long brown hair and no beard, and hasn't got a cent, and Brace boards him for nothing, and gives him his old clothes to wear, and despises him.
Living Perkins was asked to decorate one of the black- boards and Rebecca the other.