Daidener or Deadener: How To spell?

The word Daidener is misspelled against Deadener, a noun meaning "One who, or that which, deadens or checks."

Deadener has vowels 'ea' together mispronounced as 'ai'
Word contains consecutive vowels 'EA' in between alphabets d & dener is misspelled as 'AI'
Wrong Spelling:  d-ai-dener 
Correct Spelling:  d-ea-dener 
Find more wrongly spelled words of Deadener to spell it well.

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