uplight verb 2noun 1forms 4 verb2 •To light up, illuminate.Save in the withered woods alone, where flashing bolts from Heaven Uplit the scene, and poured the fire, amid the branches riven. — 1858 •To illuminate from below. noun1 •A recessed light fixture that directs the light in an upward direction. formsuplighted · uplit · uplighting · uplights