Rundrop or Raindrop: How To spell?

The word Rundrop is misspelled against Raindrop, a noun meaning "A drop of rain."

Word contains consecutive vowels 'AI' in between alphabets r & ndrop is misspelled as 'U'
Wrong Spelling:  r-u-ndrop 
Correct Spelling:  r-ai-ndrop 
Check more misspelled words of Raindrop to spell it correct.

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