Definitions of rye:

• noun:   whiskey distilled from rye or rye and malt
• noun:   hardy annual cereal grass widely cultivated in northern Europe where its grain is the chief ingredient of black bread and in North America for forage and soil improvement
• noun:   the seed of the cereal grass
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #8246)