Rianfall or Rainfall: How To spell?
The word Rianfall is misspelled against Rainfall, a noun meaning "A fall or descent of rain; the water, or amount of water, that falls in rain; as, the average annual rainfall of a region."
Word contains consecutive vowels 'AI' in between alphabets r & nfall is misspelled as 'IA'Wrong Spelling:  r-ia-nfall  Correct Spelling:  r-ai-nfall 
Find more wrongly spelled words of Rainfall to spell it well.