The term 'LIGHTS UP' can be represented by seven different crossword solutions. The first is 'IRRADIATES', which means to emit or reflect light in all directions. The second is 'SMOKES', which refers to the burning of a substance that produces light and smoke. The third is 'KINDLES', which means to start a fire or ignite something. The fourth is 'CHANDELIER', which is a decorative lighting fixture that hangs from the ceiling. The fifth is 'UFOS', which stands for Unidentified Flying Objects, which are often seen with bright lights. The sixth is 'STARS', which are celestial bodies that emit light. Lastly, the seventh is 'FLARES', which are bright flashes of light used as a signal or warning. All of these words refer to the concept of light being emitted or reflected in some way.