Mountaun or Mountain: How To spell?
The word Mountaun is misspelled against Mountain, a noun meaning "A large mass of earth and rock, rising above the common level of the earth or adjacent land; earth and rock forming an isolated peak or a ridge; an eminence higher than a hill; a mount."
Word contains consecutive vowels 'AI' in between alphabets mount & n is misspelled as 'AU'Wrong Spelling:  mount-au-n  Correct Spelling:  mount-ai-n 
Check more misspelled words of Mountain to spell it correct.