to make, without certain understanding, but from probable indications, a notion concerning; kind a provisional or an imperfect opinion regarding; conjecture; surmise.
To conjecture rightly; resolve by a correct conjecture; form a true opinion of: as, to imagine an individual's design; to guess a riddle.
In a loose usage, to believe; believe; suppose; imagine: with a clause for item.
[This use is common in English literary works from the very first appearance associated with the word; but it is today seen as colloquial, and, from its regularity in the usa, its generally speaking supposed by Englishmen is an “Americanism.” By an easy extension guess is employed for think, believe, or suppose, even where the meaning is not conjectural, but positive, which is after that logically superfluous, serving just to result in the assertion less abrupt: because, i suppose i shall go now (which, i'm going today); i assume i understand the things I'm about (which, I know what I am doing). In most instances this use most likely arises from a desire to avoid positive assertion, or from some sense of doubt or uncertainty.] Synonyms Visualize, Presume, etc. See conjecture.
To form a conjecture; judge or deduce from incomplete or unsure research: generally with at or by.