Easton's Bible Dictionary
Noah Webster's New International Dictionary of the English Language
1. (n.) The act of seeing external objects; actual sight.
2. (n.) The faculty of seeing; sight; one of the five senses, by which colors and the physical qualities of external objects are appreciated as a result of the stimulating action of light on the sensitive retina, an expansion of the optic nerve.
3. (v.) That which is seen; an object of sight.
4. (v.) Especially, that which is seen otherwise than by the ordinary sight, or the rational eye; a supernatural, prophetic, or imaginary sight; an apparition; a phantom; a specter; as, the visions of Isaiah.
5. (v.) Hence, something unreal or imaginary; a creation of fancy.
6. (v. t.) To see in a vision; to dream.