cascovscistoWhat's the difference?

Which to use

“casco” and “cisto” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#14,093
“casco” frequency rank
#39,054
“cisto” frequency rank
53147
confusion score

Side-by-Side Comparison

Feature casco cisto
Definition invólucro do crânio saco fechado que tem uma membrana e divisão distintas do tecido circundante

Letter map: casco vs cisto

Shared letters muted; letters that set casco and cisto apart highlighted. Shared run: 3. casco and cisto follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
casco
5 ch
cisto

Pair insight - casco / cisto

casco 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 share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 53147, derived from the frequency rank of both members and their visual similarity.

casco is recorded at frequency rank #14,093, classified as anoun, pronounced /ˈkaʃ.ku/. 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 53147, this pair ranks #12,245 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of casco vs cisto

Shared letters: cos. Private to "casco": a. Private to "cisto": it.

"casco" · 5 letters · shape CVCCV  ·  "cisto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • casco ← acsco · cacso · cascco · casoc · cassco · ccasco · csaco
  • cisto ← ccisto · cisot · cissto · cistto · citso · csito · icsto

Frequently Asked Questions

Do "casco" and "cisto" mean the same thing in a sentence?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "casco" vs "cisto" - which ranks higher?
"casco" is the more common of the two: it sits at frequency rank #14,093 in our Portuguese list, against #39,054 for "cisto". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "casco" vs "cisto" is on the table, pick a follow-up below.

  • Full dictionary entry for "casco" 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 #12,245 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "casco" 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 #12,245 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list