call number (noun)

1. The librarian used the call number to place the book in the correct section of the cinema-themed display.

2. The science fiction section of the library is organized by call numbers, allowing readers to easily find their favorite books.

3. The call numbers on the books in the cartoons section of the library were colorful and playful, matching the theme.

4. The classics in the literature section were easily located by their call numbers, engraved on the spines of the books.