Urban ecosystem refers to the living and non-living components that interact within a city environment. Synonyms for urban ecosystem include urban environment, urban ecology, cityscape, metropolitan ecological system, urban nature, and urban landscape. These terms all refer to the same idea of the ecological web that exists in cities. Urban ecosystems play a crucial role in connecting people and nature in urban areas. Urban areas are increasing rapidly across the world, and understanding urban ecosystems is vital for developing sustainable cities. Therefore, understanding the various synonyms for urban ecosystem can improve our knowledge and awareness of the ecological networks that exist within our cities.