A grain used extensively in Europe for making bread, beer, and (now generally) for animal fodder.
The grass Secale cereale from which the grain is obtained.
Rye bread.
Rye whiskey.
Caraway (from the mistaken assumption that the whole seeds, often used to season rye bread, are the rye itself)
Ryegrass, any of the species of Lolium.
A disease of hawks.