"Luminous emittance" refers to the amount of visible light emitted by an object. Synonyms for this term include luminosity, radiance, brightness, brilliance, gleam, glare, luster, shimmer, shine, and glow. These words describe various aspects of the level of light being emitted by an object, from a subtle shimmer to a blazing radiance. The use of these synonyms can help to add variety and depth to descriptions of light sources in writing, such as in describing a dazzling sunset or a glowing candle flame. Whatever the context, there are many words available for expressing the beauty and intensity of light.