noun
A piece of furniture with shelves for storing books. Common in modern Japanese homes and offices.
新しいブックケースを買って、本を整理した。
I bought a new bookcase and organized my books.
本棚 is the native Japanese word for bookshelf or bookcase, more common in everyday speech. ブックケース is a loanword often used for a standalone, often glass-doored bookcase.
Loanword from English 'bookcase'.