Definition of MEGACITY


Megacity is a noun that refers to an extremely large city, typically with a population exceeding ten million people. It represents a significant urban phenomenon characterized by vast populations, extensive infrastructure, and complex social, economic, and environmental challenges.

Urban Population Centers: Megacity denotes urban areas with extremely high population densities. These cities are often hubs of economic activity, cultural exchange, and technological innovation. Examples of megacities include Tokyo, New York City, São Paulo, and Mumbai, each home to millions of residents and a wide array of services and industries.

Infrastructure and Development: A megacity requires extensive infrastructure to support its large population. This includes transportation systems, housing, healthcare facilities, and utilities such as water, electricity, and sanitation. Effective infrastructure development is crucial to ensure the smooth functioning of these sprawling urban areas and to maintain the quality of life for their inhabitants.

Economic Hubs: Megacities are often economic powerhouses, contributing significantly to their national economies. They typically host a wide range of industries, including finance, manufacturing, technology, and services. The concentration of businesses and economic activities in megacities attracts investment, drives innovation, and creates employment opportunities.

Social and Cultural Diversity: Megacities are characterized by their social and cultural diversity. They attract people from various regions and backgrounds, creating multicultural environments with diverse languages, traditions, and lifestyles. This diversity enriches the cultural fabric of megacities but can also pose challenges in terms of social integration and cohesion.

Environmental Challenges: The rapid growth and high density of megacities lead to significant environmental challenges. These include air and water pollution, waste management issues, and the strain on natural resources. Urban planning and sustainable development practices are essential to mitigate the environmental impact and ensure the long-term sustainability of megacities.

Urban Planning and Governance: Effective governance and urban planning are critical in managing the complexities of megacities. Authorities must address issues such as housing affordability, traffic congestion, public safety, and social services. Strategic planning and investment in smart city technologies can help improve the efficiency and livability of megacities.

In conclusion, a megacity is a vast urban area with a population exceeding ten million people. It encompasses extensive infrastructure, economic activities, social and cultural diversity, and environmental challenges. Managing a megacity requires comprehensive urban planning and governance to address the needs of its large population and ensure sustainable development. Megacities play a crucial role in the global economy and cultural exchange, reflecting both the opportunities and challenges of urbanization in the 21st century.

Examples of MEGACITY in a sentence

  • Tokyo is often cited as the world’s largest megacity due to its immense population and urban sprawl.
  • The rapid growth of urban populations has led to the emergence of several new megacities in the past decade.
  • Living in a megacity can be both exciting and overwhelming due to the constant activity and density of people.
  • Environmental sustainability is a major concern for planners in any megacity.
  • Traffic congestion is a common issue in almost every megacity around the globe.
  • The infrastructure of a megacity must be carefully planned to support its large population.
  • Many people are drawn to a megacity by the promise of better job opportunities and amenities.
  • The economic impact of a megacity can be significant, often driving the country’s overall growth.

Etymology of MEGACITY

The etymology of megacity involves Greek “megas” for great, Old French “cite,” and Latin “civitas” for city. Coined in English, the term refers to an exceptionally large and populous urban center.

  • Mega” from Greek “megas” (great, large).
  • City” from Old French “cite” (city) and Latin “civitas” (community, city).
  • The term “megacity” combines “mega” with “city” to describe an exceptionally large and populous urban center.
  • Megacity” integrates Greek and Latin elements, emphasizing greatness or largeness and the concept of a city. Coined in modern English, the term specifically denotes an urban area characterized by an extremely high population and vast size.

Derived from Greek “megas” and Latin “civitas,” megacity characterizes an urban area of extraordinary size and population. Its linguistic construction captures the essence of vast and highly populated cityscapes in the modern world.


  • Metropolis
  • Megalopolis
  • Urban agglomeration
  • Metroplex
  • Conurbation
  • City cluster
  • Cityscape
  • Megapolis


  • Small town
  • Rural area
  • Hamlet
  • Village
  • Countryside
  • Suburb
  • Outback
  • Wilderness


  • Urbanization
  • Metropolitan
  • City planning
  • Infrastructure
  • Population density
  • Cityscape
  • Economic hub
  • Cultural diversity

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