Source : Webster's Revised Unabridged Dictionary (1913)

Broadside \Broad"side`\, n.
   1. (Naut.) 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. [Colloq.]

   4. (Print.) A sheet of paper containing one large page, or
      printed on one side only; -- called also {broadsheet}.

Source : WordNet®

broadside
     adj : toward a full side; "a broadside attack"
     n 1: an advertisement (usually printed on a page or in a leaflet)
          intended for wide distribution; "he mailed the circular
          to all subscribers" [syn: {circular}, {handbill}, {bill},
           {broadsheet}, {flier}, {flyer}, {throwaway}]
     2: a speech of violent denunciation [syn: {tirade}, {philippic}]
     3: all of the armament that is fired from one side of a warship
     4: the whole side of a vessel from stem to stern; "the ship was
        broadside to the dock"
     5: the simultaneous firing of all the armament on one side of a
        warship
     adv : with a side facing an object; "the train hit the truck
           broadside"; "the wave caught the canoe broadside and
           capsized it"
     v : collide with the broad side of; "her car broad-sided mine"