The term COLLINS INGREDIENT is a reference to the ingredients used in the classic cocktail, the Tom Collins. The three-letter solution GIN is an alcoholic beverage made from juniper berries and other botanicals. The four-letter solution LIME is a citrus fruit often used as a garnish or flavoring in cocktails. The six-letter solution EILEEN is a brand of Irish whiskey. The four-letter solution PHIL is a brand of vodka. The five-letter solution PHILS is a brand of GIN. All of these ingredients are used to make a Tom Collins cocktail.