noun

• (Commonwealth, but not Australia or New Zealand, uncountable) Any cereal plant (or its grain) that is the main crop or staple of a country or region.
  "And hee ſaid, Beholde, I haue heard that there is corne in Egypt: get you downe thither and buy for vs from thence, that we may liue, and not die."
• (US, Canada, Australia, New Zealand, uncountable) Maize, a grain crop of the species Zea mays.
  "The planting or sowing of maize, exclusively called corn, was just accomplished on the Town Hill, when I reached it."
• (uncountable) A type of granular snow formed by repeated melting and refreezing, often in mountain spring conditions.
• (Jamaica, MLE, slang, firearms, uncountable) Bullets, ammunition, charge and discharge of firearms.
  "R.I.P Scumpy ah you did say Popcaan And if a boy diss we clap corn."

verb

• (US, Canada) To granulate; to form (a substance) into grains.
  "to corn gunpowder"
• (US, Canada) To preserve using coarse salt, e.g. corned beef.
• (US, Canada) To provide (an animal) with corn (typically maize; or, in Scotland, oats) for feed.
  "Corn the horses."
• (transitive, obsolete) To render intoxicated.
  "ale strong enough to corn one"

noun

• (veterinary medicine) An inflammatory disease of a horse's hoof, at the caudal part of the sole.
• (veterinary medicine) Skin hyperplasia with underlying fibroma between both digits of cattle.

noun

• (US, Canada) Something (e.g., acting, humour, music, or writing) which is deemed old-fashioned or intended to induce emotion.
  "He had a sharp wit, true enough, but also a good, healthy mountaineer's love of pure corn, the slapstick stuff, the in-jokes that get funnier with every repetition and never amuse anybody who wasn't there."