How Do You Spell W PROOF?
Pronunciation: [dˈʌbə͡ljˌuː pɹˈuːf] (IPA) 
The spelling of the term "w proof" can be explained using the International Phonetic Alphabet (IPA). The "w" sound is represented by the IPA symbol /w/, which is a voiced labial-velar glide. The word "proof" features the vowel sound /u/, which is an unstressed high back rounded vowel. Therefore, when combined, "w proof" is pronounced as /w pruːf/. This term is often used in reference to materials that are resistant to water or other liquids, such as waterproof clothing or "w proof" cases for electronics.
