Incandesce is a verb meaning to emit light, usually in a bright and steady manner. The term can be broken down into three crossword solutions: BLAZE (5 letters), FLASH (5 letters), and GLOW (4 letters). BLAZE means to burn brightly and intensely, while FLASH is a sudden burst of light, and GLOW is a soft, steady light. Together, these three words describe the phenomenon of incandescence, which is the emission of light from a hot object.