noun
a bulletin board backstage in a theater (Freq. 1)
• Hypernyms: ↑bulletin board, ↑notice board
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noun : bulletin board: as
a. : a backstage bulletin board on which rehearsal calls and notices to the company are posted
b. : a board on which train times and the assignments of train crews are posted
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/kawl"bawrd', -bohrd'/, n.
a bulletin board, as in a theater, on which notices are posted announcing rehearsals, changes in the cast, etc.
[1875-80, Amer.]
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n. a bulletin board in a theater on which announcements for the cast and crew are posted
Useful english dictionary. 2012.