Which to use
“metastases” and “metastasis” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #48,896
- “metastases” frequency rank
- #34,194
- “metastasis” frequency rank
- 83090
- confusion score
Side-by-Side Comparison
| Feature | metastases | metastasis |
|---|---|---|
| Definition | plural of metastasis | A change in nature, form, or quality. |
Where the spellings diverge
Shared letters are muted; the letters that actually set metastases and metastasis apart are highlighted. They share 9 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
A purely visual mix-up. metastases (/mɪˈtæstəsiːs/) and metastasis (/mɪˈtæstəsɪs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - e in “metastases” becomes i in “metastasis”. Our composite confusion score for this pair is 83090, derived from the frequency rank of both members and their visual similarity.
metastases is recorded at frequency rank #48,896, classified as anoun, pronounced /mɪˈtæstəsiːs/. metastasis is at rank #34,194, tagged as anoun, pronounced /mɪˈtæstəsɪs/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 83090, this pair ranks #14,483 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of metastases vs metastasis
Shared letters: aemst. Private to "metastases": -. Private to "metastasis": i.
"metastases" · 10 letters · shape CVCVCCVCVC · "metastasis" · 10 letters · shape CVCVCCVCVC
Known mistypes of this pair
- metastases ← emtastases · meatstases · metasatses · metasstases · metastaess · metastasess · metastasse · metastasses
- metastasis ← emtastasis · meatstasis · metasatsis · metasstasis · metastaiss · metastasiss · metastassi · metastassis
Frequency comparison
Frequently Asked Questions
Can "metastases" and "metastasis" be used interchangeably?
Which is more common, "metastases" or "metastasis"?
Remembering metastases vs metastasis
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “metastases” entry
- Browse more pairs most likely to be confused. Most confusable