1. 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
2. the dried grains or kernels or corn used as animal feed or ground for meal
3. ears of corn grown for human food
4. a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes
5. annual or biennial grass having erect flower spikes and light brown grains
6. whiskey distilled from a mash of not less than 80 percent corn