Sulen or Sullen: How To spell?

The word Sulen is misspelled against Sullen, a noun meaning "One who is solitary, or lives alone; a hermit."

Sullen has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings su & en which should not be misspelled with single 'L'
Wrong Spelling:  su-l-en 
Correct Spelling:  su-ll-en 
Check more misspelled words of Sullen to spell it correct.