book-end

n (usu pl 通常作复数) either of a pair of supports to keep books upright 书立; 书挡; 书靠.

Bonfire Night, bongo, bonhomie, bonkers, bonnet, bonnily, bonny, bonus, bony, boo, boob, booby, booby prize (also wooden spoon), booby trap, booby-trap, boodle, boogie, book, book club, book token, book-keeper, book-plate, bookable, bookbinder [C], bookbinding [U], bookcase, bookie, booking, bookish, bookishness, bookkeeper [C], bookkeeping [U], booklet, bookmark (also bookmarker), bookmobile, books, bookseller, bookshelf, bookshop (US also bookstore), bookstall, bookstore, bookworm,