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Supposition

usgb/ˌsʌpəˈzɪʃn/Volume
Left Definition 1 of 2Right
LampPro Tip 1/3
Proof Not RequiredPlay
Supposition doesn't need proof, but it's based on some reason or belief. SlideHer supposition that the keys were in the car was correct, even though she hadn't checked.
LampPro Tip 2/3
Likely TruePlay
A supposition is often something you think is true or likely, rather than a wild guess. SlideHis supposition that the traffic would be heavy at this hour was logical.
LampPro Tip 3/3
Conversation StarterPlay
Use supposition to introduce an idea you're not sure about but want to discuss. SlideI'm working on the supposition that she'll be late, so let's wait a bit longer.