punctilio vs observance

punctilio and observance both are nouns.

Word	Noun	Adjective	Verb	Adverb
punctilio	Yes	No	No	No
observance	Yes	No	No	No

As nouns, observance is a hypernym of punctilio; that is, observance is a word with a broader meaning than punctilio:

Other hypernyms of punctilio include honoring, honouring.

punctilio (noun)	observance (noun)
strict observance of formalities	the act of observing; taking a patient look
a fine point of etiquette or petty formality	conformity with law or custom or practice etc.
	the act of noticing or paying attention
	a formal event performed on a special occasion