Hypernyms (cordial is a kind of...): alcohol; alcoholic beverage; inebriant; intoxicant (a liquor or brew containing alcohol as the active agent) Hyponyms (each of the following is a kind of cordial): absinth; absinthe (strong green liqueur flavored with wormwood and anise) ratafee; ratafia (sweet liqueur made from wine and brandy flavored with plum or peach or apricot kernels and bitter almonds)
Bourbon is mostly made from corn, at least 51% corn. Rye whiskey is mostly or entirely made from Rye. They differ in many other details - for example Bourbon must be aged in new, charred American Oak barrels and made in the US, Scotch must be made in Scotland, but the big differences are the grains used.
Most bourbon mashbills contain corn, barley, and rye. The more traditional ones have 8 to 10 percent rye. A few bourbons stand out with a high rye content that makes for a bold, spicy flavor. Four Roses Single Barrel has the highest rye count of any bourbon on the market, at 35 percent. Other high-ryes include Bulleit, Jim Beam's Basil Hayden, and Old Grand Dad.