What is the meaning of 4to?

noun

  • The size of a book whose pages are made by folding a sheet of paper twice to form four leaves.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). 4to. Retrieved September 20, 2026, from http://smartdefine.org/4to/definitions/1254178
ChicagoWordNet. 2010. "4to" http://smartdefine.org/4to/definitions/1254178 (accessed September 20, 2026).
HarvardWordNet 2010, 4to, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/4to/definitions/1254178>.
MLAWordNet. "4to" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/4to/definitions/1254178>