The word "sourstuff" is spelled with the IPA phonetic transcription as /saʊərstʌf/. The first syllable "sou" is pronounced as /saʊ/, rhyming with "now" or "cow". The second syllable "r" is silent and the "stuff" is pronounced as /stʌf/, sounding like "stuff". This word refers to something that is sour or acidic in taste. To correctly spell this word, one must pay attention to the vowel and consonant sounds present in each syllable.