'Presupposition' definitions:

Definition of 'presupposition'

From: WordNet
noun
The act of presupposing; a supposition made prior to having knowledge (as for the purpose of argument)

Definition of 'Presupposition'

From: GCIDE
  • Presupposition \Pre*sup`po*si"tion\, n. [Pref. pre- + supposition: cf. F. pr['e]supposition.]
  • 1. The act of presupposing; an antecedent implication; presumption. [1913 Webster]
  • 2. That which is presupposed; a previous supposition or surmise. [1913 Webster]

Synonyms of 'presupposition'

From: Moby Thesaurus