Noun
1. an advertisement (usually printed on a page or in a leaflet) intended for wide distribution;
"he mailed the circular to all subscribers"2. a speech of violent denunciation
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