The word Smoothnes is misspelled against Smoothness, a noun meaning "Quality or state of being smooth."
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Smoothness has double 'ss' in the end mispronounced as 's'
Remember double 'SS' appears in the end of this word which should not be misspelled with single 'S'
Wrong Spelling: smoothne-s
Correct Spelling: smoothne-ss
Find more incorrect spellings of Smoothness to spell right way.