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megacity

American  
[meg-uh-sit-ee] / ˈmɛg əˌsɪt i /

noun

plural

megacities
  1. a city having a population of one million or more.


megacity British  
/ ˈmɛɡəˌsɪtɪ /

noun

  1. a city with over 10 million inhabitants

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of megacity

First recorded in 1965–70; mega- + city

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the high-tech megacity of Shenzhen in southern China, Prince Andrew looked on as dancers spun and waved streamers to entertain an audience of investors and innovators.

From BBC

Shah Alam travelled from his home in Bangladesh to Pakistan for a brief visit nearly three decades ago, but flaring hostility between the two countries and financial woes left him stranded in the megacity of Karachi.

From Barron's

Residents of Staten Island, New York's often-forgotten borough, have long celebrated their distinct distance from the rest of the megacity, and the election of a leftist mayor has fired up old conversations about breaking away from the Big Apple.

From Barron's

Plans for the Neom megacity, billed as the world’s most audacious venture in urban design, have been scaled back.

From The Wall Street Journal

There are two very different flanks to Kimwenza Valley on the southern outskirts of Kinshasa, a megacity of around 17 million inhabitants which is constantly expanding and engulfing the surrounding countryside.

From Barron's