The correct spelling of the word is "conformity" /kənˈfɔːmɪti/. The word is spelled with a "y" instead of an "i" at the end. The "y" is used instead of an "i" when adding the suffix "-ity" to words ending with "-orm". This is because the letter "y" is used to form the suffix "-ity" as it replaces the "i" letter from the original word. Therefore, the correct spelling of the word with the suffix would be "conformity" and not "conformit".