"Avion-canon" is a French term that translates to "airplane cannon" in English. As the name suggests, it refers to the military tactic of equipping aircraft with cannons to shoot down other planes or ground targets during a war. Some synonyms for "avion-canon" include "gunship", "aerial gunner", "fighter plane", "warbird", "combat aircraft", and "attack plane". While these terms are not an exact match for "avion-canon", they do evoke the idea of a weaponized aircraft engaged in military action. These synonyms are often used in discussions about military aviation and combat tactics, both historically and in modern times.