Definition of soda noun from the Oxford Advanced Learner's Dictionary

     

    soda

     noun
    noun
    BrE BrE//ˈsəʊdə//
     
    ; NAmE NAmE//ˈsoʊdə//
     
     
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  1. 1 [uncountable, countable] = soda water Add some soda to the whisky, please. a Scotch and soda
  2. 2 (old-fashioned soda pop) (both North American English) [uncountable, countable] a sweet fizzy drink (= a drink with bubbles) made with soda water, fruit flavour and sometimes ice cream Do you have any diet soda? He had an ice-cream soda.
  3. 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
  4. Word Origin late Middle English (in sense (3)): from medieval Latin, from Arabic suwwad ‘saltwort’ (a plant whose ashes were formally used in soap making).
See the Oxford Advanced American Dictionary entry: soda