The term 'LENGTH OF RESIDENCE' can be defined as the amount of time someone has lived in a particular place. It is often used to measure how long a person has been living in a certain area, such as a city or country. The crossword solution for this term is 'STAY', which means to remain in a place for a period of time. This term is often used to describe how long a person has been living in a certain area, and it can also be used to refer to how long a person plans to STAY in a certain place.