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.

1400–50; late Middle English < Middle French presupposer. See pre-, suppose

presupposition [pree-suhp-uh-zish-uhn] , noun
presuppositionless, adjective

1. presume. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
presuppose (ˌpriːsəˈpəʊz)
1.  to take for granted; assume
2.  to require or imply as a necessary prior condition
3.  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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1426, from O.Fr. presupposer (14c.), from M.L. præsupponere; see pre- + suppose.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Due to the lack of copious records a theoretical presupposition was able to
  interject itself into the data.
However, specific agreement is not a presupposition of reasoned dialogue.
If certain intended misleaders are introduced, presupposition does not enter
  into memory.
Presupposition can also occur at the sentence level.
Related Words
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