Lemonade is a lemon flavored drink, typically made from lemons, water and sugar.  Artificially flavored and artificially sweetened are also very popular.  There are four different kinds of lemonade there is freshly squeezed, Reconstituted, powdered mix and there is slush which is a form of shaved ice which is made of lemon juice and/or pieces, and sugar and is popular at theme parks and fairs.