corsovscursoWhich spelling fits?

Which to use

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

#35,518
“corso” frequency rank
#847
“curso” frequency rank
36365
confusion score

Side-by-Side Comparison

Feature corso curso
Definition corso conjunto de disciplinas onde alunos se matriculam para aprender um determinado tema

Letter map: corso vs curso

Shared letters muted; letters that set corso and curso apart highlighted. Shared run: 4.

5 ch
corso
5 ch
curso

Pair insight - corso / curso

corso and curso 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 a single letter - o in “corso” becomes u in “curso”. Our composite confusion score for this pair is 36365, derived from the frequency rank of both members and their visual similarity.

corso is recorded at frequency rank #35,518, classified as anoun. curso is at rank #847, tagged as anoun, pronounced /ˈkuɾ.su/.

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 36365, this pair ranks #30,473 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of corso vs curso

Shared letters: cors. Private to "corso": -. Private to "curso": u.

"corso" · 5 letters · shape CVCCV  ·  "curso" · 5 letters · shape CVCCV

Known mistypes of this pair

  • corsoccorso · coros · corrso · corsso · cosro · croso · ocrso
  • cursoccurso · cruso · curos · currso · cursso · cusro · ucrso

Frequently Asked Questions

Is swapping "corso" for "curso" ever safe?
No. They differ by a single letter - o in “corso” becomes u in “curso”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary Portuguese text, does "corso" or "curso" show up more?
"curso" is the more common of the two: it sits at frequency rank #847 in our Portuguese list, against #35,518 for "corso". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Done with this confusable. These links stay specific to "corso" and "curso".

  • Full dictionary entry for "corso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "curso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,473 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "corso" and "curso" also get mixed up with nearby pairs, the highest-scored neighbour is "corso vs cursor". 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 #30,473 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