The word Smothen is misspelled against Smoothen, a verb meaning "To make smooth."
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Smoothen has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings sm & then which should not be misspelled with single 'O'
Wrong Spelling: sm-o-then
Correct Spelling: sm-oo-then
Find more incorrect spellings of Smoothen to spell right way.