library (small, often single-room); reading room
Typically refers to a small library or reading room within a school, community center, or similar facility, as opposed to a large standalone library (図書館).
After school, I did my homework in the library.
この公民館には小さな図書室がある。
This community center has a small library.
I borrowed a book from the library.
I went to the library during the break.
Students can freely use the library.