cosavsCSAWhat's the difference?

Quick tell: cosa is a noun, CSA is an abbrev, so they fill different roles in a sentence.

Which to use

“cosa” is a noun and “CSA” is an abbrev - they look or sound alike but fill different roles in a sentence.

#31,312
“cosa” frequency rank
#21,705
“CSA” frequency rank
53017
confusion score

Side-by-Side Comparison

Feature cosa CSA
Definition coisa sigla de Canadian Space Agency, a Agência Espacial Canadense

Letter map: cosa vs CSA

Shared letters muted; letters that set cosa and CSA apart highlighted. Shared run: 3.

4 ch
cosa
3 ch
CSA

Grammar separator: cosa vs CSA

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cosa is anoun and CSAanabbrev. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 53017, derived from the frequency rank of both members and their visual similarity.

cosa is recorded at frequency rank #31,312, classified as anoun, pronounced /'kɔ.sa/. CSA is at rank #21,705, tagged as anabbrev.

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 53017, this pair ranks #12,340 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of cosa vs CSA

Shared letters: acs. Private to "cosa": o. Private to "CSA": -.

"cosa" · 4 letters · shape CVCV  ·  "CSA" · 3 letters · shape CCV

Known mistypes of this pair

  • cosaccosa · cossa · csoa · ocsa

Frequently Asked Questions

Do "cosa" and "CSA" mean the same thing in a sentence?
No - they are not even the same part of speech. "cosa" is a noun and "CSA" an abbrev, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "cosa" vs "CSA" - which ranks higher?
"CSA" is the more common of the two: it sits at frequency rank #21,705 in our Portuguese list, against #31,312 for "cosa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "cosa" vs "CSA" is on the table, pick a follow-up below.

  • Full dictionary entry for "cosa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "CSA" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #12,340 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cosa" and "CSA" also get mixed up with nearby pairs, the highest-scored neighbour is "conca vs cosa". 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 #12,340 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