Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Presuppose \Pre`sup*pose"\, v. t. [imp. & p. p. Presupposed; p. pr. & vb. n. Presupposing.] [Pref. pre- + suppose: cf. F. pr['e]supposer.] To suppose beforehand; to imply as antecedent; to take for granted; to assume; as, creation presupposes a creator.
Each [kind of knowledge] presupposes many necessary
things learned in other sciences, and known beforehand.
--Hooker.
Douglas Harper's Etymology Dictionary
Wiktionary
vb. To assume some truth without proof, usually for the purpose of reaching a conclusion based on that truth.
WordNet
Usage examples of "presuppose".
Only in monolingual single-culture business interactions is it reasonable to assume that everyone involved will roughly agree on what is presupposed and what must be explained.
The latter always presupposed signs anterior to it: so that knowledge always resided entirely in the opening up of a discovered, affirmed, or secretly transmitted, sign.
Now, this continuum, which appears therefore at the very basis of nomination, in the opening left between description and arrangement, is presupposed well before language, as its condition.
He presupposed a progressive gradation, an unbroken process of improvement, an uninterrupted continuum of beings which could form themselves upon one another.
Hence, what is assumed must be presupposed to the assumption, as what is moved locally is presupposed to the motion.
Although human nature was not assumed in the concrete, as if the suppositum were presupposed to the assumption, nevertheless it is assumed in an individual, since it is assumed so as to be in an individual.
But the union is taken to be the term of the assumption, and the parts are presupposed to the assumption.
Their self-image already presupposed a sympathetic rapport between leaders and citizens.
Stated flatly as a matter of incontrovertible natural law, this principle evidently precluded any sort of institutionalized distinctions of the kind presupposed in a society of orders.
All this, of course, presupposed his abandoning the Feuillant peace strategy, and there is every sign that this indeed was his intention by December 1791, much applauded by the Queen and even more by his sister, Mme Elisabeth.
While diplomatic language since the age of heralds had habitually used subterfuge, and presupposed distinctions between ostensible and actual intentions that would be read by those to whom its messages were addressed, the language of citizens was meant to be transparently sincere, direct and unmediated.
But it also presupposed that the needy would declare themselves to be such at a time when others in the Convention were proposing to transport vagrants to Madagascar.
Here, as in all similar statements which elevate the Apostles into the history of revelation, the unanimity of all the Apostles is always presupposed, so that the statement of Clem.
For by means of this assumption which was wide-spread even among the Greeks, humanity seemed to be unburdened, and the presupposed capacity for redemption could therefore be justified in its widest range.
Supper, nor was there any inner connection presupposed between these holy actions.