indoor garden vs conservatory

indoor garden and conservatory both are nouns.

Word	Noun	Adjective	Verb	Adverb
indoor garden	Yes	No	No	No
conservatory	Yes	No	No	No

As nouns, indoor garden and conservatory are synonyms defined as:

indoor garden and conservatory: a greenhouse in which plants are arranged in a pleasing manner

Other synonyms of indoor garden include hothouse.

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