- 1 (also soda pop, pop) [uncountable, countable] a sweet carbonated drink (= a drink with bubbles) made with soda water, fruit flavor, and sometimes ice cream Do you have any diet soda? He had an ice-cream soda.
- 2[uncountable, countable] = soda water Add some soda to the whiskey, please. a Scotch and soda
- 3[uncountable] a chemical substance in common use that is a compound of sodium baking/washing soda see also caustic soda, sodium bicarbonate, sodium carbonate