To form a mental image of; produce by the imagination; especially, to construct by the productive imagination.To conceive in the mind; suppose; conjecture.To contrive in purpose; scheme; devise.= Syn. 1 and 2. Surmise, Guess, etc. (see conjecture), fancy, picture to one's self, apprehend, believe, suppose, deem. —3. To plan, frame. scheme.To form images or conceptions; exercise imagination.To suppose; fancy; think.