metastasize

/mɪˈtæstəsaɪz/

//mɪˈtæstəsaɪz// verb

Detailed reference entry for the English word "metastasize", 11-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "metastasize" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "metastasize" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

The verdict

“metastasize” is an uncommon English word, ranked #93,988 in English word frequency and used as a verb.

#93,988
frequency rank, English
11
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Of a disease (especially cancer) or a tumour: to form a metastasis (“a secondary focus away from the primary site”) in (a body organ).

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Key facts for metastasize
PropertyValue
Headwordmetastasize
LanguageEnglish
Part of speechVerb
IPA/mɪˈtæstəsaɪz/
Letters11
Frequency rank#93,988
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “metastasize” 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). metastasize lands here:

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

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

Spelling & Dictionary Insight

The English entry for metastasize is 11 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /mɪˈtæstəsaɪz/. Corpus data places it at rank #93,988 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 4 distinct senses for this headword, so context determines which meaning a reader should apply.

No misspelling variants are generated for metastasize in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From metastasis + -ize (suffix forming verbs meaning to do things denoted by the adjectives or nouns the suffix is attached to). Metastasis is a learned borrowing from Late Latin metastasis (“(rhetoric) rapid or sudden transition from one argument, point, o… Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is metastasize, spelled M-E-T-A-S-T-A-S-I-Z-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    Of a disease (especially cancer) or a tumour: to form a metastasis (“a secondary focus away from the primary site”) in (a body organ).
  2. 2
    To disseminate or spread (something, often an undesirable thing), especially in a destructive manner.
  3. 3
    Of a disease (especially cancer) or a tumour: to undergo metastasis (“spreading from a primary site to one or more other sites in the body”).
  4. 4
    Of a thing, often one which is undesirable: to disseminate or spread, especially in a destructive manner.

Etymology

From metastasis + -ize (suffix forming verbs meaning to do things denoted by the adjectives or nouns the suffix is attached to). Metastasis is a learned borrowing from Late Latin metastasis (“(rhetoric) rapid or sudden transition from one argument, point, or topic to another”), and from its etymons Koine Greek μετάστασις (metástasis, “(rhetoric) rapid or sudden transition from one argument, point, or topic to another”) and Ancient Greek μετάστασις (metástasis, “change; removal; (medicine) movement of disease, pain, etc., from one part of the body to another”), from μετᾰ- (metă-, prefix denoting change in condition or position) (possibly ultimately from Proto-Indo-European *meth₂) + στᾰ́σῐς (stắsĭs, “condition, state; position”) (ultimately from Proto-Indo-European *steh₂- (“to stand (up)”)), modelled after μεθιστάναι (methistánai, “to change; to remove”). The use of French métastase (“metastasis”) to refer to the spread of cancer was coined in 1829 by the French gynecologist Joseph Récamier (1774–1852).

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.

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PlainSpell, “metastasize, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/metastasize

Frequently Asked Questions

How do you spell "metastasize"?
"metastasize" is spelled M-E-T-A-S-T-A-S-I-Z-E. The IPA pronunciation is /mɪˈtæstəsaɪz/.
What does "metastasize" mean?
As a verb, "metastasize" means: Of a disease (especially cancer) or a tumour: to form a metastasis (“a secondary focus away from the primary site”) in (a body organ).
How do you pronounce "metastasize"?
The IPA (International Phonetic Alphabet) transcription for "metastasize" is /mɪˈtæstəsaɪz/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "metastasize"?
From metastasis + -ize (suffix forming verbs meaning to do things denoted by the adjectives or nouns the suffix is attached to). Metastasis is a learned borrowing from Late Latin metastasis (“(rhetoric) rapid or sudden transition from one argument... 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 “metastasize”

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

  • The one correct English spelling is M-E-T-A-S-T-A-S-I-Z-E - every other letter order is a misspelling in standard orthography.
  • Say it as /mɪˈtæstəsaɪz/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more English words and confusable pairs in the same reference. English words

Nearby English words

Other entries that begin with the letter M in our English index:

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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