Webster's Revised Unabridged Dictionary · 1913

Broadside

Broadside ({not transcribed}) , noun

1.
(Nautical) The side of a ship above the water line, from the bow to the quarter.
2.
A discharge of or from all the guns on one side of a ship, at the same time.
3.
A volley of abuse or denunciation. [Colloquial]
4.
(Printing) A sheet of paper containing one large page, or printed on one side only; -- called also broadsheet.