Throw pillows also called toss pillows or pillow shams in different worldwide dialects of English. These pillows are pillows that are mainly decorative and not designed for support or comfort. A cushion is a soft bag filled with air or padding such as hollow fiber, feathers, foam or rubber. In the United Kingdom, pillows used on chairs and sofas are called cushions or throw cushions, with the word pillow used only for pillows on a bed. In the UK, cushions are usually square, while bed pillows are oblong.