What is the difference between a juice, a drink, and a cocktail?

Juice from concentrate/not from concentrate:

Concentrated fruit juice is juice from which water has been removed by concentration to make it more readily transportable. This juice is then reconstituted at the plant by reintegrating water in accordance with strict standards. When the juice is not from concentrate, it has been obtained immediately after pressing the fruit; hence there has been no addition of water.

Drinks and cocktails:

Usually composed of water, sugar (glucose-fructose), artificial flavour, and food colouring. Lassonde drinks and cocktails contain added fruit juice to enhance flavour.