Found 2 items, similar to 4to.
English → English (WordNet) Definition: 4to 4to n : the size of a book whose pages are made by folding a sheet of paper twice to form four leaves [syn: quarto]
English → English (gcide) Definition: 4to 4to \4to\ n. 1. the size of a book whose pages are made by folding a sheet of paper twice to form four leaves. Syn: quarto [WordNet 1.5]