Lemonade is a colourless sweet fizzy drink. A drink that is made from lemons, sugar, and water and is not fizzy can also be referred to as lemonade. He was pouring ice and lemonade into tall glasses. A glass of lemonade can be referred to as a lemonade. I'm going to get you a lemonade
In the US, a drink made of lemon juice, sugar and water; in the UK, a carbonated drink that doesn't necessarily contain anything closer to a lemon than a bit of citric acid