All 3 Uses

conservatory
in
Metamorphosis
(Auto-generated)

Unlike him, she was very fond of music and a gifted and expressive violinist, it was his secret plan to send her to the conservatory next year...
Part 2 *

conservatory = school for music
During Gregor's short periods in town, conversation with his sister would often turn to the conservatory but it was only ever mentioned as a lovely dream that could never be realised.†
Part 2
He never wanted to let her out of his room, not while he lived, anyway; his shocking appearance should, for once, be of some use to him; he wanted to be at every door of his room at once to hiss and spit at the attackers; his sister should not be forced to stay with him, though, but stay of her own free will; she would sit beside him on the couch with her ear bent down to him while he told her how he had always intended to send her to the conservatory, how he would have told everyone about it last Christmas — had Christmas really come and gone already?†
Part 3

Definitions:

(1) (conservatory as in: music conservatory)
a school specializing in one of the fine arts -- especially music, dance, or drama
(2) (conservatory as in: plants in the conservatory)
a greenhouse in which plants are arranged in a pleasing manner
(3) (meaning too rare to warrant focus)