Megacity

noun

/ˈmɛɡəsɪti/

An urban agglomeration with a total population of 10 million or more inhabitants, characterised by enormous economic output, complex governance challenges, and significant socio-environmental pressures including congestion, pollution, and housing stress.

✍️ Usage in a UPSC answer

The unchecked growth of India's megacities, where glittering financial districts abut sprawling informal settlements, has made the provision of basic urban services and the mitigation of climate vulnerability one of the defining governance challenges of the twenty-first century.

Synonyms

megalopolismetropolisconurbationmegapolisurban agglomerationmetropolitan area

Antonyms

villagehamlettownbackwater

🌱 Word Family

megacity (n), megacities (n pl), mega- (prefix), megalopolis (n), megapolitan (adj)

🔡 Root

Greek megas (μέγας) = great, large; mega- prefix; Latin civitas = community of citizens (via Old French cite)

📜 Etymology

The prefix mega- from Greek megas (μέγας, "great, large") combined with city from Old French cite, from Latin civitas ("community of citizens"); the term gained currency in the 1970s–80s as cities like Tokyo, New York, and Mexico City crossed the 10-million threshold.

🧠 Memory Hook

Break it as MEGA + CITY: "mega" means giant (think megabyte, megaphone), so a megacity is simply a giant-sized city of millions.

🌍 Geography 📖 Seen in: World Population & Urbanisation — Glob...

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