Drink mixers are the non-alcoholic ingredients in mixed drinks and cocktails. There are many reasons mixers are used. They change or enhance flavors or add new ones to a drink. Mixers dilute the drink, lowering the alcohol by volume in the drink. They may make the drink sweeter, more sour, or more savory.
Soft drink is a drink that usually contains carbonated water, a sweetener, and a natural or artificial flavoring. The sweetener may be a sugar, high-fructose corn syrup, fruit juice, a sugar substitute, or some combination of these.