Celi or Celli: How To spell?
The word Celi is misspelled against Celli, which is plural of "Cello"
Celli has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings ce & i which should not be misspelled with single 'L'
Wrong Spelling:  ce-l-i  Correct Spelling:  ce-ll-i 
Find more wrongly spelled words of Celli to spell it well.