Suppose (verb)

1. To assume or take for granted that something is true.
2. To imagine or expect that something is true or will happen.
3. To suggest or propose something as a possibility or as a basis for further discussion.

Origin:

Middle english supposen, from old french supposer, from latin supponere, from sub- + ponere to put, place.

Examples:

1. I suppose it's possible, but I'm not sure.
2. Suppose we get there early, what will we do?
3. He supposed that the meeting would be short.
4. I suppose you are right.
5. Suppose you were in my place, what would you do?