noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A very large city; a megalopolis.

   "Why, for instance, do water users in a megacity like Lagos not pay an extra charge to get cesspits pumped out?"

Synonyms

All synonyms

megalopolissupercitysupercity

Example

More examples

"Algiers is Algeria's capital and megacity."

Etymology

From mega- + city.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.