Broad'side, n.
n. 1. A discharge of all the guns on one side of a ship, above and below, at the same time. “All his thunders roaring from his broad-sides.” Everett.
Sense 2. (Naut.) The side of a ship above the water, from the bow to the quarter. Totten.
Sense 3. (Print.) A sheet of paper containing one large page, or printed on one side only. Johnson.