There are several synonyms for the term 'urban growth' including 'urbanization', 'metropolitan expansion', 'city development' and 'municipal expansion'. Each of these synonyms refers to the process of a city or town expanding its boundaries either through an influx of population or physical development. Urbanization is the most commonly used synonym for urban growth, referring specifically to the increase in urban population as people move from rural to urban areas. Metropolitan expansion refers to the growth of cities and metropolitan areas, while city development and municipal expansion more broadly describe the physical growth and transformation of urban areas. These synonyms are important in understanding the impact of urban growth on the environment, economy, and social fabric of cities and towns.