ブックポスト

noun

book drop; book return box

A box or slot, often at libraries, for returning books outside of opening hours. Wasei-eigo from English 'book post'.

wasei-eigo (Japanese-coined English), from book post

• 図と書しょ館かんの入いり口ぐちにブックポストがある。

  There is a book drop at the entrance of the library.

• 閉へい館かん後ごはブックポストに本ほんを返かえしてください。

  Please return books in the book drop after closing hours.