A soft drink (see § terminology for other names) is a drink that usually contains water (often carbonated), a sweetener, and a natural and/or artificial flavoring. the sweetener may be a sugar, high-fructose corn syrup, fruit juice, a sugar substitute (in the case of diet drinks), or some combination of these. soft drinks may also contain caffeine, colorings, preservatives, and/or other ingredients. soft drinks are called "soft" in contrast with "hard" alcoholic drinks. small amounts of alcohol may be present in a soft drink, but the alcohol content must be less than 0.5% of the total volume of the drink in many countries and localities if the drink is to be considered non-alcoholic. type...

Source: Wikipedia