Relacionar Columnas Measuring populationsVersión en línea Now you have to relate the terms with its definition. por Laura Jiménez Ruiz 1 Immigrant 2 Absolute population 3 Actual increase 4 Population density 5 Emigrant 6 Natural increase A person who moves into an area. A person who moves away from an area. The difference between the number of births and the number of deaths. Includes the natural increase, the immigrants arriving and emigrants leaving. The average number of people who live in each square kilometre of land. The total number of people living in an area.