mirage /mɪˈɹɑːʒ/noun 2verb 1forms 3 noun2 •An optical phenomenon in which light is refracted through a layer of hot air close to the ground, often giving the illusion of a body of water. •(figurative) An illusion. verb1 •To cause to appear as or like a mirage.All that had been in his mind seemed suddenly miraged before him—the removal of Hunterleys, his own wife's failing health. — 1915 formsmiraged · miraging · mirages