broad·side / ˈbrôdˌsīd/ • n. 1. a nearly simultaneous firing of all the guns from one side of a warship. ∎ fig. a strongly worded critical attack: broadsides against the Christian faith. ∎  the side of a ship above the water between the bow and quarter.2. a sheet of paper printed on one side only, forming one large page: a broadside of Lee's farewell address.• adv. with the side turned to a particular thing: the yacht was drifting broadside to the wind. ∎  on the side: her car was hit broadside by another vehicle.• v. [tr.] collide with the side of (a vehicle): I had to skid my bike sideways to avoid broadsiding her.

broadside a firing of all the guns from one side of a warship.