A document or card, similar to a ticket, needed in order to board an airplane or other mode of transport.

plural of running board

(nautical) A sliding centreboard used in some Chinese junks and dinghies, allowing for speedy maneuvering.

A board on which messages may be posted, especially one in a public space.

plural of board game

plural of ironing board

plural of bulletin board

plural of notice board

The computerised system which runs parimutuel betting, calculating payoff odds, displaying them, and producing tickets based on incoming bets.

A board containing multiple electrical fuses or circuit breakers; a panelboard