say it: KAN-uhn
cannon is a noun and verb meaning "a large artillery gun that is usually on wheels". It carries 8 recorded senses.
(Middle Ages) a cylindrical piece of armor plate to protect the arm
Middle Ages
lower part of the leg extending from the hock to the fetlock in hoofed mammals
fire a cannon
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for cannon come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.