The word Revail is misspelled against Reveal, a noun meaning "A revealing; a disclosure."
-->
Reveal has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets rev & l is misspelled as 'AI'
Wrong Spelling:  rev-ai-l 
Correct Spelling:  rev-ea-l 
Find more wrongly spelled words of Reveal to spell it well.