Billethaid or Billethead: How To spell?
The word Billethaid is misspelled against Billethead, a noun meaning "A round piece of timber at the bow or stern of a whaleboat, around which the harpoon lone is run out when the whale darts off."
Billethead has vowels 'ea' together mispronounced as 'ai'Word contains consecutive vowels 'EA' in between alphabets billeth & d is misspelled as 'AI'
Wrong Spelling:  billeth-ai-d  Correct Spelling:  billeth-ea-d 
Find more wrongly spelled words of Billethead to spell it well.