Suny or Sunny: How To spell?
The word Suny is misspelled against Sunny, a comparative word meaning "Cheerful; genial; as, a sunny disposition."
Sunny has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings su & y which should not be misspelled with single 'N'
Wrong Spelling:  su-n-y  Correct Spelling:  su-nn-y 
Check more misspelled words of Sunny to spell it correct.