Estimate

Webster's Dictionary of the English Language

·noun A valuing or rating by the mind, without actually measuring, weighing, or the like; rough or approximate calculation; as, an estimate of the cost of a building, or of the quantity of water in a pond.

II. Estimate ·vt To from an opinion of, as to amount,, number, ·etc., from imperfect data, comparison, or experience; to make an estimate of; to calculate roughly; to Rate; as, to estimate the cost of a trip, the number of feet in a piece of land.

III. Estimate ·vt To judge and form an opinion of the value of, from imperfect data, — either the extrinsic (money), or intrinsic (moral), value; to fix the worth of roughly or in a general way; as, to estimate the value of goods or land; to estimate the worth or talents of a person.