The word "pre vails" is spelled with a combination of consonants and vowels that can sometimes be difficult to pronounce correctly. The first syllable "pre" is pronounced as /preɪ/, the vowel sound is equivalent to the "a" in "day". The second syllable "vails" is pronounced as /veɪlz/. The combination of the letter "ai" in the word is pronounced as the "ay" sound which is equivalent to the "a" in "day". The correct spelling and pronunciation of "pre vails" can help enhance the clarity of communication while using the word.