Definition of suppose

• express a supposition; "Let us say that he did not tell the truth"; "Lets say you had a lot of money--what would you do?"
• expect, believe, or suppose; "I imagine she earned a lot of money with her new novel"; "I thought to find her in a bad state"; "he didnt think to find her in the kitchen"; "I guess she is angry at me for standing her up"
• to believe especially on uncertain or tentative grounds; "Scientists supposed that large dinosaurs lived in swamps"