pageant vs pageantry

pageant and pageantry both are nouns.

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

As nouns, pageant and pageantry are synonyms defined as:

pageant and pageantry: an elaborate representation of scenes from history etc; usually involves a parade with rich costumes

As nouns, pageant and pageantry are synonyms defined as:

pageant (noun)	pageantry (noun)
an elaborate representation of scenes from history etc; usually involves a parade with rich costumes	an elaborate representation of scenes from history etc; usually involves a parade with rich costumes
a rich and spectacular ceremony	a rich and spectacular ceremony