The word Slynes is misspelled against Slyness, a noun meaning "The quality or state of being sly."
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Slyness 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:  slyne-s 
Correct Spelling:  slyne-ss 
Explore spell check of Slyness to spell without errors.