The term 'used as a chair' can be solved by three different crossword solutions: SATIN, saton, and restedon. SATIN is a smooth, glossy fabric made from silk or a synthetic fiber, often used for clothing and upholstery. Saton is a type of cotton fabric that is usually used for upholstery and drapery. Restedon is a type of furniture that is designed to be used as a chair, typically with a back and armrests.