Limeade is a beverage similar to lemonade, but is made with lime juice or lime flavor(s) instead of those of the lemon. A.G. Barr plc, of Glasgow produce a limeade which is somewhat popular in Scotland, and Newman's Own introduced its own brand of limeade in 2004. Most major beverage companies now offer their own brand of limeade, with Minute Maid even introducing a Cherry Limeade drink in response to the popularity of Limeade.
A carbonated version is often made of 7up mixed with the juice of several limes. Sonic Drive-In uses Sprite instead of 7up to create its popular limeade.
Lemonade is a name given to two different types of juice. In the U.S., Turkey, Canada and Denmark, lemonade refers to an uncarbonated mixture of lemon juice, sugar, and water.
In the UK, Australia, Switzerland, and New Zealand, the term mainly refers to a colourless, carbonated, sweet lemon-flavored soft drink.
In India, lemonade (commonly known as Nimbu paani) refers to an uncarbonated mixture of lemon juice, sugar and water which may or may not contain common or rock salt. (limbu paani is made with limes, not lemons)