The term 'building used as a home' can be summarized by the crossword solution 'HOUSE', which is a five-letter word. A HOUSE is a structure that is built for people to live in and is typically composed of one or more rooms with walls, floors, and a roof. Houses are usually constructed from materials such as wood, brick, stone, or concrete, and they come in a variety of sizes and styles. Houses are often seen as a symbol of stability and security, and they provide shelter and protection from the elements.