Treenal or Treenail: How To spell?

The word Treenal is misspelled against Treenail, a noun meaning "A long wooden pin used in fastening the planks of a vessel to the timbers or to each other."

Word contains consecutive vowels 'AI' in between alphabets treen & l is misspelled as 'A'
Wrong Spelling:  treen-a-l 
Correct Spelling:  treen-ai-l 
Explore spell check of Treenail to spell without errors.

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