To granulate; to form a substance into grains
Example: "To corn gunpowder"
To preserve using coarse salt, e.g. corned beef
To provide with corn (typically maize; or, in scotland, oats) for feed
Example: "Corn the horses."
To render intoxicated
Example: "Ale strong enough to corn one"
Consisting of grains; granulated
(of meat) preserved in salt