Thiness or Thinness: How To spell?

The word Thiness is misspelled against Thinness, a noun meaning "The quality or state of being thin (in any of the senses of the word)."

--> Thinness has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings thi & ess which should not be misspelled with single 'N'
Wrong Spelling:  thi-n-ess 
Correct Spelling:  thi-nn-ess 
Find more wrongly spelled words of Thinness to spell it well.

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