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Meaning of presuppose

pre•sup•pose

Pronunciation: (prē"su-pōz'), [key]
— -posed, -pos•ing.
  1. to suppose or assume beforehand; take for granted in advance.
  2. (of a thing, condition, or state of affairs) to require or imply as an antecedent condition: An effect presupposes a cause.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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