Losen or Loosen: How To spell?
The word Losen is misspelled against Loosen, a verb meaning "To become loose; to become less tight, firm, or compact."
Loosen has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings l & sen which should not be misspelled with single 'O'
Wrong Spelling:  l-o-sen  Correct Spelling:  l-oo-sen 
Find more incorrect spellings of Loosen to spell right way.