Board

A board may be a:

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• piece of lumber (or other rigid material made of wood), milled or sawn flat
• surfboard, skateboard, or snowboard (often made of fibreglass)
• commission or committee, such as an executive board of directors or a (sometimes rather supervisory) board of governors
• bulletin board system or other Internet forum
• surface upon which a board game is played
• device used in playing duplicate bridge
• distinct area inside a video game, usually called "level"