House Division is a term used to describe the process of dividing a house into separate rooms. This can be done for a variety of reasons, such as creating more living space or providing privacy. The crossword solution for this term is ROOM, which is a four-letter word. ROOM is a common term used to refer to a part of a house that is separated from other parts by walls and a door. It is typically used to provide a space for activities such as sleeping, eating, and studying.