pageantry vs ceremony

pageantry and ceremony both are nouns.

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

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

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

pageantry (noun)	ceremony (noun)
an elaborate representation of scenes from history etc; usually involves a parade with rich costumes	the proper or conventional behavior on some solemn occasion
a rich and spectacular ceremony	any activity that is performed in an especially solemn elaborate or formal way
	a formal event performed on a special occasion