n. That which is conceived, imagined, or formed in the mind; conception; idea; thought; image.n. The faculty of conceiving; understanding; apprehension.n. Opinion; estimation; view or belief.n. An undue opinion; a baseless fancy; a crotchety notion.n. An exaggerated estimate of one's own mental ability, or of the importance or value of what one has done; an overvaluation of one's own acuteness, wit, learning, etc.; self-conceit: as, a man inflated with conceit.n. A witty, happy, or ingenious thought or expression; a quaint or humorous fancy; wit; humor; ingenuity; especially, in modern usage, a quaint or odd thought; a thought or expression intended to be striking or poetical, but rather far-fetched, insipid, or pedantic.n. A fanciful or ingenious device or invention.n. A trifle; a dainty; a kickshaw.n. Synonyms Vagary, whim, illusion.n. Pride, Vanity, etc. (see egotism), self-sufficiency, self-complacency.To conceive; imagine; think; suppose; form an idea of.Reflexively, to imagine; fancy; think; believe: implying error.To cause to imagine.To form a notion; have an opinion; conceive.