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.