Which to use
“castor” and “cisto” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #16,007
- “castor” frequency rank
- #39,054
- “cisto” frequency rank
- 55061
- confusion score
Side-by-Side Comparison
| Feature | castor | cisto |
|---|---|---|
| Definition | roedor semi-aquáticos da família Castoridae, nativo da América do Norte e da Europa | saco fechado que tem uma membrana e divisão distintas do tecido circundante |
Letter map: castor vs cisto
Shared letters muted; letters that set castor and cisto apart highlighted. Shared run: 4. castor runs 6 letters (CVCCVC) against cisto's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Pair insight - castor / cisto
castor and cisto are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55061, derived from the frequency rank of both members and their visual similarity.
castor is recorded at frequency rank #16,007, classified as anoun, pronounced /kɐsˈtoɾ/. cisto is at rank #39,054, tagged as anoun.
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 55061, this pair ranks #10,835 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of castor vs cisto
Shared letters: cost. Private to "castor": ar. Private to "cisto": i.
"castor" · 6 letters · shape CVCCVC · "cisto" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "castor" and "cisto" mean the same thing in a sentence?
In ordinary Portuguese text, does "castor" or "cisto" show up more?
What to do next
Done with this confusable. These links stay specific to "castor" and "cisto".
- Full dictionary entry for "castor" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cisto" - compare definitions side by side with the headword page. Word entry
- This pair ranks #10,835 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "castor" and "cisto" also get mixed up with nearby pairs, the highest-scored neighbour is "ciao vs cisto". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #10,835 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.