The term 'Armchair Protector' can be summarized as a slipcover, which is a nine-letter word. A slipcover is a removable piece of fabric that is used to cover furniture, such as an armchair, in order to protect it from dirt and wear. Slipcovers are usually made from durable materials such as cotton, linen, or polyester, and come in a variety of colors and patterns. They are easy to clean and can be removed and replaced when needed.