Mastering pronunciation is a difficult task when learning a language. However, isn’t it ironic that the word pronunciation is spelled and pronounced differently than the word pronounce?
The first difficulty is that many people misspell pronunciation as pronounciation. However, even if you get the spelling right, it is important to notice that “pronounce” is to be pronounced as [prəˈnaʊns] (listen here), whereas the pronunciation of “pronunciation” is [prəˌnʌnsiˈeɪʃn] (listen here). The difference is exactly reflected in the spelling.