Cannon/ˈkænən/ Definition 1 of 4Pro Tip 1/3Historical Context Cannons are associated with historical warfare and maritime defense, rarely used in modern combat. Museums display cannons from the 18th century. Pro Tip 2/3Physical Scale Cannons are very large and heavy, requiring a team to operate, not handheld. The soldiers struggled to position the massive cannon. Pro Tip 3/3Sound Characteristics Firing a cannon produces a loud, booming noise, often used for ceremonial salutes. The cannon's roar echoed during the salute.