caosvscosTell them apart

Quick tell: caos is a noun, cos is a pronoun, so they fill different roles in a sentence.

Which to use

“caos” is a noun and “cos” is a pronoun - they look or sound alike but fill different roles in a sentence.

#4,128
“caos” frequency rank
#27,810
“cos” frequency rank
31938
confusion score

Side-by-Side Comparison

Feature caos cos
Definition espaço limitado e amorfo que precedeu à criação do cosmo qualquer coisa

Letter map: caos vs cos

Shared letters muted; letters that set caos and cos apart highlighted. Shared run: 3.

4 ch
caos
3 ch
cos

Part-of-speech tell for caos / cos

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: caos is anoun and cosapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 31938, derived from the frequency rank of both members and their visual similarity.

caos is recorded at frequency rank #4,128, classified as anoun, pronounced /ˈkaws/. cos is at rank #27,810, tagged as apron.

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 31938, this pair ranks #35,993 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of caos vs cos

Shared letters: cos. Private to "caos": a. Private to "cos": -.

"caos" · 4 letters · shape CVVC  ·  "cos" · 3 letters · shape CVC

Known mistypes of this pair

  • caosacos · caoss · ccaos · coas

Frequently Asked Questions

Can "caos" and "cos" be used interchangeably?
No - they are not even the same part of speech. "caos" is a noun and "cos" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "caos" or "cos" show up more?
"caos" is the more common of the two: it sits at frequency rank #4,128 in our Portuguese list, against #27,810 for "cos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "caos" and "cos".

  • Full dictionary entry for "caos" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #35,993 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "caos" and "cos" also get mixed up with nearby pairs, the highest-scored neighbour is "coin vs cos". 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 #35,993 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