Headseal or Headsail: How To spell?

The word Headseal is misspelled against Headsail, a noun meaning "Any sail set forward of the foremast."

Word contains consecutive vowels 'AI' in between alphabets heads & l is misspelled as 'EA'
Wrong Spelling:  heads-ea-l 
Correct Spelling:  heads-ai-l 
Explore spell check of Headsail to spell without errors.

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