Pronunciation: (u-krôs'&thslash;u bôrd', -bōrd', u-kros'-),[key] —adj. 1. applying to all employees, members, groups, or categories; general: The across-the-board pay increase means a raise for all employees. 2. (of a bet) covering all possibilities of winning on a given result, esp. by placing a combination bet on one horse in a race for win, place, and show.