conformance vs nicety

conformance and nicety both are nouns.

Word	Noun	Adjective	Verb	Adverb
conformance	Yes	No	No	No
nicety	Yes	No	No	No

As nouns, nicety is a hyponym of conformance; that is, nicety is a word with a more specific, narrower meaning than conformance:

Other hyponyms of conformance include justness, rightness, normality.

conformance (noun)	nicety (noun)
correspondence in form or appearance	conformity with some esthetic standard of correctness or propriety
	a subtle difference in meaning or opinion or attitude