<p><strong>Noun</strong></p><ul><li>An optical phenomenon, especially in the desert or at sea, by which the image of some object appears displaced above, below, or to one side of its true position as a result of spatial variations of the index of refraction of air</li><li>Something illusory, without substance or reality</li><li>Synonyms: fancy, phantom, illusion</li><li>Mirage</li><li>Military: any of a series of supersonic, delta-wing, multirole French fighter-bombers</li></ul>