to lay (something) down tentatively as a hypothesis, assumption, or proposal
Suppose a fire broke out
Suppose we wait a bit
to hold (something) as an opinion; to believe
She supposed it wouldn't matter
to think (something) probable or in keeping with the facts
It seemed reasonable to suppose that they would make a profit
to conjecture or think (something)
When do you suppose he'll arrive?
to assume or presuppose (something)
These plans suppose the measurements to be accurate
be supposed to do something
to be expected, intended, or allowed to do something
Drivers are supposed to wear seat belts
You're not supposed to go in there
supposable adj
[Middle English supposen via French from Latin supponere to put under, substitute, from sub- + ponere to put]