I am aware that the plural of metropolis is metropolises, but to me it sounds stilted and to be honest I cannot recall ever hearing it used.

Is there an irregular plural of metropolis that would be in a less formal register. Any common mistaken pluralizations?

  • 7
    If "metropolises" sounds stilted to you, use "cities".
    – Ben Voigt
    May 29, 2011 at 13:24
  • Actually, wouldn't it be: metropolese as a plural for metropolis?
    – user44314
    May 15, 2013 at 19:44

3 Answers 3


Metropolis is originally a Greek word, but comes to English through Latin. The Latin plural is metropoles (presumably pronounced with /iːz/ instead of /ɪs/). The Greek plural is metropoleis. If you look at a Google Ngram, metropolises is used most of the time, but metropoles is not uncommon. Metropoleis is used very rarely, and when used, it mainly refers to ancient Greek city-states.

Ngram: metropolis, metropoles, metropoleis

Wiktionary and some dictionaries suggest metropolises and metropoleis as the plural, but I would strongly advise against using metropoleis (unless you're talking about ancient Greek city-states); Greek plurals are rarely used in English (see octopodes). But if you want to use metropoles rather than metropolises, you won't be alone.

  • 1
    I still suggest Metropolitan areas...
    – mplungjan
    May 29, 2011 at 16:14
  • ... but if OP started using metropoleis, it would be less-rarely used. I mean, if it's used at all, and not really confusing, why not promote its use over, say metropoles? Greek is teh best :-)
    – einpoklum
    Jan 10, 2016 at 15:07

Metropolises is the plural of metropolis, and for what I know, there aren't other plurals for that word.

Looking for metropolises at the Corpus of Contemporary American English and the British National Corpus, I get the following data:


(Corpus of Contemporary American English doesn't report any data under "non-academic" or "miscellaneous"; the scale is logarithmic.)

The higher number of times the word is found in the CoCA corpus is 31, which means a ratio of 0.38 per million.

Metropolises is used in sentences like the following:

I would refine this further to suggest that when experiences in small towns, ports, commercial cities, and industrial metropolises are compared, similarities far outweigh divergences across the country and that a broadly defined "Jewishkeit," or mixture of Jewish tradition, custom, values, and historical experience, exerted substantial influence over behavior.


According to dictionary.reference.com the plural for metropolis is "metropolises".


  • That’s not really a citable source.
    – tchrist
    May 4, 2014 at 1:42

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