supercannon
/suːpəɹˈkæn.ən/
Etymology
From super- + cannon.
supercannon means synonym of supergun. Lexicurio rates it Rare gem — a strength score of 82 out of 100.
supercannon is pronounced /suːpəɹˈkæn.ən/.
noun
- Synonym of supergun.“The introduction of the submarine, the aeroplane, and the dirigible, made possible by the invention of the internal-combustion engine, the use of the wireless telegraph and telephone, and the employment of lethal gases, of supercannon and possibly of aerial torpedoes make obsolete many rules formerly observed but now ignored.”