city
n. countable A1 Beginner Oxford US //ˈsɪti// UK //sˈɪti// city
n. a large and important town where many people live and work. It usually has many tall buildings, shops, and a big transport system.
n. a large human settlement, typically with a significant population and extensive infrastructure. Often used to distinguish a major urban centre from smaller towns or rural areas.
London is a very big city.
Many people move from the countryside to the city to find better jobs and schools.
The rapid expansion of the city has led to significant challenges in urban planning, particularly regarding public transportation and affordable housing for the growing population.