Synonyms: assumption, premise, premiss
Definition: a statement that is assumed to be true and from which a conclusion can be drawn
Usage: on the assumption that he has been injured we can infer that he will not to play
Similar words: posit, postulate
Definition: (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning
Definition: take something as preexisting and given
Similar words: suppose, presuppose
Definition: take for granted or as a given; suppose beforehand
Usage: I presuppose that you have done your work