pageantry vs observance

pageantry and observance both are nouns.

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

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

Other hypernyms of pageantry include ceremonial, ceremonial occasion, ceremony.

pageantry (noun)	observance (noun)
an elaborate representation of scenes from history etc; usually involves a parade with rich costumes	the act of observing; taking a patient look
a rich and spectacular ceremony	conformity with law or custom or practice etc.
	the act of noticing or paying attention
	a formal event performed on a special occasion