back-board

back-board [bak-bord]
sustantivo
1Respaldo o escudo de boe. (Marina)
2Respaldo, espaldar (of bench), tabla trasera (of bookshelves), forro, materia delgada empleada en los espaldares de los espejos, cuadros, etc.

Word of the Day: evidentemente

evidently, plainly, clearly, obviously