Portmanteas or Portmanteaus: How To spell?

The word Portmanteas is misspelled against Portmanteaus, which is plural of "Portmanteau"

Word contains consecutive vowels 'AU' in between alphabets portmante & s is misspelled as 'A' as letter 'U' is phonetically ign
Wrong Spelling:  portmante-a-s 
Correct Spelling:  portmante-au-s 
Find more incorrect spellings of Portmanteaus to spell right way.

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