Smartnes or Smartness: How To spell?

The word Smartnes is misspelled against Smartness, a noun meaning "The quality or state of being smart."

Smartness 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:  smartne-s 
Correct Spelling:  smartne-ss 
Explore spell check of Smartness to spell without errors.

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