A cushiony seat is a type of furniture that is typically found in living rooms and other areas of the home. The term 'cushiony seat' can be used to describe a SOFA, which is a four-letter word that is commonly used to complete crossword puzzles. A SOFA is a piece of furniture that typically has a soft surface and is designed for comfort. It is usually upholstered with fabric or leather and often has cushions for added comfort.