Fould or Fauld: How To spell?

The word Fould is misspelled against Fauld, a noun meaning "The arch over the dam of a blast furnace; the tymp arch."

Word contains consecutive vowels 'AU' in between alphabets f & ld is misspelled as 'OU'
Wrong Spelling:  f-ou-ld 
Correct Spelling:  f-au-ld 
Check more misspelled words of Fauld to spell it correct.

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