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[pree-suh-pohz] /ˌpri səˈpoʊz/
verb (used with object), presupposed, presupposing.
to suppose or assume beforehand; take for granted in advance.
(of a thing, condition, or state of affairs) to require or imply as an antecedent condition:
An effect presupposes a cause.
Origin of presuppose
late Middle English
1400-50; late Middle English < Middle French presupposer. See pre-, suppose
Related forms
[pree-suhp-uh-zish-uh n] /ˌpri sʌp əˈzɪʃ ən/ (Show IPA),
presuppositionless, adjective
1. presume. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for presupposes
  • Before something exists, it must be created, and evolution presupposes the existence of that which evolves.
  • It also presupposes that consciousness is a binary thing, or a static truth for all humans.
  • The free market presupposes free choice of products for consumers.
  • Faith presupposes the unknowable, but the acceptance of logic does not affect faith.
  • Again these exams reinforce critical skills needed to succeed and presupposes that students have done some preparation.
  • ID presupposes only an intelligent cause of order in the universe, not an intelligent source of existence itself.
  • Democracy presupposes equality before the law, due process and political pluralism.
  • Desalination presupposes the presence of salt water to produce fresh water.
  • More and more, getting ahead presupposes getting a good education.
  • The free market presupposes unfettered market entry and exit, and a level playing field for all participants.
British Dictionary definitions for presupposes


verb (transitive)
to take for granted; assume
to require or imply as a necessary prior condition
(philosophy, logic, linguistics) to require (a condition) to be satisfied as a precondition for a statement to be either true or false or for a speech act to be felicitous. Have you stopped beating your wife? presupposes that the person addressed has a wife and has beaten her
Derived Forms
presupposition (ˌpriːsʌpəˈzɪʃən) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for presupposes



mid-15c., from Old French presupposer (14c.), from Medieval Latin praesupponere; see pre- + suppose. Related: Presupposed; presupposing.

Online Etymology Dictionary, © 2010 Douglas Harper
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