megacity

noun

"megacity" is a 8-letter English headword indexed on PlainSpell.

The verdict

“megacity” is uncommon English (frequency #97,296 among 36,575 “M” headwords), classed as a noun. The kind of spelling people second-guess.

#97,296
frequency rank, English
36,575
“M” headwords

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A very large city; a megalopolis.

Key facts for megacity
PropertyValue
Headwordmegacity
LanguageEnglish
Part of speechNoun
Letters8
Frequency rank#97,296
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “megacity” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). megacity lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Rare enough to double-check

megacity is uncommon English at frequency #97,296 among 36,575 “M” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "A very large city; a megalopolis.".

No misspelling variants are generated for megacity in our index, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From mega- + city. The correct English form is megacity, spelled M-E-G-A-C-I-T-Y.

Definition

  1. 1
    A very large city; a megalopolis.

Etymology

From mega- + city.

This word in other languages

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "megacity"?
"megacity" is spelled M-E-G-A-C-I-T-Y.
What does "megacity" mean?
As a noun, "megacity" means: A very large city; a megalopolis.
What is the origin of the word "megacity"?
From mega- + city. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “megacity”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is M-E-G-A-C-I-T-Y - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Other uncommon English words near this rank

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list