しょさい書斎shosai
1.
A room in a private home designated for reading, writing, and conducting research.
2.
A personal space within a residence that serves the purpose of quiet study or intellectual work.
3.
A specific area in a house used primarily for literary activities, such as book reading and written compositions.
4.
A dedicated room where an individual can engage in focused work or study away from distractions.
Example:
このドアは書斎に通じている。