Meaning of corn
Definition of corn
(noun)
tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times
a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes
(Great Britain) any of various cereal plants (especially the dominant crop of the region--wheat in Great Britain or oats in Scotland and Ireland)
preserve with salt; "corned beef"