The size of a book whose pages are made by folding a sheet of paper twice to form four leaves.

synonym: 4to.

Roget 593: booklet; writing, work, volume, tome, opuscule^†; tract, tractate^†; livret^†; brochure, libretto, handbook, codex, manual, pamphlet, enchiridion^†, circular, publication; chap book.    part, issue, number livraison [Fr.]; album, portfolio; periodical, serial, magazine, ephemeris, annual, journal.    paper, bill, sheet, broadsheet^†; leaf, leaflet; fly leaf, page; quire, ream.    [subdivisions of a book] chapter, section, head, article, paragraph, passage, clause; endpapers, frontispiece; cover, binding.    folio, quarto, octavo; duodecimo^†, sextodecimo^†, octodecimo^†.    encyclopedia; encompilation^†.    [collection of books] library, bibliotheca^†.    press etc. (publication) 531.    [complete description] definitive work, treatise, comprehensive treatise (dissertation) 595.    [person who writes a book] writer, author, litterateur [Fr.], essayist, journalism; pen, scribbler, the scribbling race; literary hack, Grub-street writer; writer for the press, gentleman of the press, representative of the press; adjective jerker^†, diaskeaust^†, ghost, hack writer, ink slinger; publicist; reporter, penny a liner; editor, subeditor^†; playwright etc. 599; poet etc. 597.    bookseller, publisher; bibliopole^†, bibliopolist^†; librarian; bookstore, bookshop, bookseller's shop.    knowledge of books, bibliography; book learning etc. (knowledge) 490.    ... show more

Dutch: kwartoformaat
Polish: ćwiartka, quarto, kwarto