Suppose

1. n. Supposition.
2. v. t. To represent to one’s self, or state to another, not as true or real, but as if so, and with a view to some consequence or application which the reality would involve or admit of; to imagine or admit to exist, for the sake of argument or illustration; to assume to be true; as, let us suppose the earth to be the center of the system, what would be the result?
3. v. t. To imagine; to believe; to receive as true.
4. v. t. To require to exist or to be true; to imply by the laws of thought or of nature; as, purpose supposes foresight.
5. v. t. To put by fraud in the place of another.
6. v. i. To make supposition; to think; to be of opinion.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.