Bolen or Bollen: How To spell?
The word Bolen is misspelled against Bollen, an adjective meaning "Swollen; puffed out."
Bollen has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings bo & en which should not be misspelled with single 'L'
Wrong Spelling:  bo-l-en  Correct Spelling:  bo-ll-en 
Find more incorrect spellings of Bollen to spell right way.