Thredfin or Threadfin: How To spell?
The word Thredfin is misspelled against Threadfin, a noun meaning "Any one of several species of fishes belonging to Polynemus and allied genera. They have numerous long pectoral filaments."
Threadfin has vowels 'ea' together mispronounced as 'e'Word contains consecutive vowels 'EA' in between alphabets thr & dfin is misspelled as 'E'
Wrong Spelling:  thr-e-dfin  Correct Spelling:  thr-ea-dfin 
Find more wrongly spelled words of Threadfin to spell it well.