Definition of "Suppose" :

verb: expect, believe, or suppose

verb: to believe especially on uncertain or tentative grounds

"Scientists supposed that large dinosaurs lived in swamps."

verb: require as a necessary antecedent or precondition

"This step presupposes two prior ones."

verb: take for granted or as a given; suppose beforehand

"I presuppose that you have done your work."

verb: express a supposition