Gayner or Gainer: How To spell?

The word Gayner is misspelled against Gainer, a noun meaning "One who gains."

Word contains consecutive vowels 'AI' in between alphabets g & ner is misspelled as 'AY'
Wrong Spelling:  g-ay-ner 
Correct Spelling:  g-ai-ner 
Explore spell check of Gainer to spell without errors.

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