megacity Meaning in the Cambridge English Dictionary
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Meaning of “megacity” in the English Dictionary

"megacity" in British English

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megacitynoun [C]

uk   /ˈmeɡ.ə.sɪt.i/  us   /-sɪt̬.i/
a very ​largecity, ​especially one with more than 10 million ​peopleliving in it
(Definition of megacity from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"megacity" in Business English

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megacitynoun [C]

(plural megacities) (also mega-city, mega city) uk   us   /ˈmeɡəˌsɪti/
a very large city that has a ​population of more than 10 million ​people and that is often made of two or more urbanareas that have ​grown so much that they are ​connected: Lagos is a mega-city that now ​stretches over ​roughly 300 ​squarekilometres. London is likely to become one of the world's biggest megacities by 2020.
(Definition of megacity from the Cambridge Business English Dictionary © Cambridge University Press)
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