The term 'glossy quality' can be described by the word 'SHEEN', which is a five-letter word. SHEEN is a type of luster or gloss that is often used to describe the surface of a material, such as fabric, paint, or metal. It is usually associated with a glossy, shiny, and reflective look. SHEEN is often used to describe the level of light reflection from a surface, with higher SHEEN levels indicating more light reflection.