WordReference Random House Unabridged Dictionary of American English © 2026
me•gap•o•lis
(mə gap′ə lis),USA pronunciation n.
meg•a•pol•i•tan
(meg′ə pol′i tn),USA pronunciation adj., n.
WordReference Random House Learner's Dictionary of American English © 2026- megalopolis.
- 1630–40; mega- + -polis
meg•a•lop•o•lis /ˌmɛgəˈlɑpəlɪs/USA pronunciation also me•gap•ol•is /məˈgæpəlɪs/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- a very large city.
- an urban region that contains more than one large city.
meg•a•lop•o•lis
(meg′ə lop′ə lis),USA pronunciation n.
- a very large city.
- an urban region, esp. one consisting of several large cities and suburbs that adjoin each other.
- megalo- + polis 1825–35
'megapolis' also found in these entries (note: many are not synonyms or translations):