The word Runbowed is misspelled against Rainbowed, an adjective meaning "Formed with or like a rainbow."
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Word contains consecutive vowels 'AI' in between alphabets r & nbowed is misspelled as 'U'
Wrong Spelling:  r-u-nbowed 
Correct Spelling:  r-ai-nbowed 
Check more misspelled words of Rainbowed to spell it correct.