noun
Refers to a room or space for reading and study, or a collection of books; can also mean a library in a traditional or private context.
祖父の書房には古い本がたくさんある。
There are many old books in my grandfather's study.
この寺の書房は一般に公開されている。
The library of this temple is open to the public.
noun
bookstore; bookshop; publishing company
Used for shops that sell books or for publishing firms; often appears in company names or formal contexts.
駅前に新しい書房がオープンした。
A new bookstore opened in front of the station.
彼は小さな書房を経営している。
He runs a small publishing company.
出版社 is the usual term for a publishing company; 書房 is an older or more literary alternative, often seen in company names.
Compound of 書 (writing, book) and 房 (room, chamber). The exact historical derivation is uncertain, but the kanji combination naturally suggests a room for books.