The word Nightdres is misspelled against Nightdress, a noun meaning "A nightgown."
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Nightdress 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:  nightdre-s 
Correct Spelling:  nightdre-ss 
Find more wrongly spelled words of Nightdress to spell it well.