The term 'smooth and shiny' can be described by three crossword solutions: SLEEK (5 letters), GLOSSY (6 letters), and SATINY (6 letters). SLEEK is an adjective that describes something that is smooth, streamlined, and elegant in appearance. GLOSSY is an adjective that describes something that has a shiny surface, often due to a coating of oil or varnish. SATINY is an adjective that describes something that has a smooth, GLOSSY surface, often due to a fabric weave. All three words describe something that is smooth and shiny.