Retanable or Retainable: How To spell?

The word Retanable is misspelled against Retainable, an adjective meaning "Capable of being retained."

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

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