Are потому что and то, что pronounced with the o in что as ə, or as o? It seems the former can be both, but which is more standard?

1 Answer 1


In the first phrase, "потому что" all three "о" are pronounced as "shwa" - ə. In the second one, "то, что" both "о" are pronounced as "о".

However in "потому, что" the first two "o" are pronounced as "shwa", but the last one is stressed and pronounced as "o".

  • What is the difference between потому что and потому, что?
    – user6816
    Nov 8, 2016 at 3:02
  • @casey, There is no difference in meaning, but depending on the structure of the sentence one may need to use a comma to separate a subordinate clause. There is a discussion in Russian here: Запятая в обороте “потому что” As a result of adding a comma "что" is pronounced as an independent word with a stressed "о"
    – Vitaly
    Nov 11, 2016 at 18:02

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