SUPPOSE

think, opine, suppose, imagine, reckon, guess

(verb) 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 didn’t think to find her in the kitchen”; “I guess she is angry at me for standing her up”

speculate, theorize, theorise, conjecture, hypothesize, hypothesise, hypothecate, suppose

(verb) to believe especially on uncertain or tentative grounds; “Scientists supposed that large dinosaurs lived in swamps”

presuppose, suppose

(verb) require as a necessary antecedent or precondition; “This step presupposes two prior ones”

presuppose, suppose

(verb) take for granted or as a given; suppose beforehand; “I presuppose that you have done your work”

suppose, say

(verb) express a supposition; “Let us say that he did not tell the truth”; “Let’s say you had a lot of money--what would you do?”

Source: WordNet® 3.1

Etymology

Verb

suppose (third-person singular simple present supposes, present participle supposing, simple past and past participle supposed)

(transitive) To take for granted; to conclude, with less than absolute supporting data; to believe.

(transitive) To theorize or hypothesize.

(transitive) To imagine; to believe; to receive as true.

(transitive) To require to exist or to be true; to imply by the laws of thought or of nature.

(transitive) To put by fraud in the place of another.

Synonyms

• assume (1,2)

• See also suppose

Source: Wiktionary

Sup*pose", v. t. [imp. & p. p. Supposed; p. pr. & vb. n. Supposing.] Etym: [F. supposer; pref. sub- under + poser to place; -- corresponding in meaning to L. supponere, suppositum, to put under, to substitute, falsify, counterfeit. See Pose.]

1. 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 Suppose they take offence without a cause. Shak. When we have as great assurance that a thing is, as we could possibly, supposing it were, we ought not to make any doubt of its existence. Tillotson.

2. To imagine; to believe; to receive as true. How easy is a bush supposed a bear! Shak. Let not my lord suppose that they have slain all the young men, the king's sons; for Amnon only is dead. 2 Sam. xiii. 32.

3. To require to exist or to be true; to imply by the laws of thought or of nature; as, purpose supposes foresight. One falsehood always supposes another, and renders all you can say suspected. Female Quixote.

4. To put by fraud in the place of another. [Obs.]

Syn.

– To imagine; believe; conclude; judge; consider; view; regard; conjecture; assume.

Sup*pose", v. i.

Definition: To make supposition; to think; to be of opinion. Acts ii. 15.

Sup*pose", n.

Definition: Supposition. [Obs.] Shak. "A base suppose that he is honest." Dryden.

Source: Webster’s Unabridged Dictionary 1913 Edition