Ridauu or Rideau: How To spell?
The word Ridauu is misspelled against Rideau, a noun meaning "A small mound of earth; ground slightly elevated; a small ridge."
Rideau has vowels 'ea' together mispronounced as 'au'Word contains consecutive vowels 'EA' in between alphabets rid & u is misspelled as 'AU'
Wrong Spelling:  rid-au-u  Correct Spelling:  rid-ea-u 
Check more misspelled words of Rideau to spell it correct.