conservatory vs conservatoire

conservatory and conservatoire both are nouns.

Word	Noun	Adjective	Verb	Adverb
conservatory	Yes	No	No	No
conservatoire	Yes	No	No	No

As nouns, conservatory and conservatoire are synonyms defined as:

conservatory and conservatoire: a schoolhouse with special facilities for fine arts

conservatory (noun)	conservatoire (noun)
a greenhouse in which plants are arranged in a pleasing manner	a schoolhouse with special facilities for fine arts
a schoolhouse with special facilities for fine arts
the faculty and students of a school specializing in one of the fine arts