curvavscustaWhat's the difference?

Which to use

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

#5,933
“curva” frequency rank
#2,470
“custa” frequency rank
8403
confusion score

Side-by-Side Comparison

Feature curva custa
Definition volta despesa feita com alguma coisa

Where the eye mixes curva and custa

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
curva
5 ch
custa

Why the eye confuses curva with custa

A purely visual mix-up. curva (/ˈkuɾ.vɐ/) and custa (/ˈkuʃ.tɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 8403, derived from the frequency rank of both members and their visual similarity.

curva is recorded at frequency rank #5,933, classified as anoun, pronounced /ˈkuɾ.vɐ/. custa is at rank #2,470, tagged as anoun, pronounced /ˈkuʃ.tɐ/.

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 8403, this pair ranks #65,382 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of curva vs custa

Shared letters: acu. Private to "curva": rv. Private to "custa": st.

"curva" · 5 letters · shape CVCCV  ·  "custa" · 5 letters · shape CVCCV

Known mistypes of this pair

  • curvaccurva · cruva · curav · currva · curvva · cuvra · ucrva
  • custaccusta · csuta · cusat · cussta · custta · cutsa · ucsta

Frequently Asked Questions

Can "curva" and "custa" be used interchangeably?
No. They are said differently (/ˈkuɾ.vɐ/ versus /ˈkuʃ.tɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "curva" vs "custa" - which ranks higher?
"custa" is the more common of the two: it sits at frequency rank #2,470 in our Portuguese list, against #5,933 for "curva". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "curva" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "custa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #65,382 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "curva" and "custa" also get mixed up with nearby pairs, the highest-scored neighbour is "cerda vs curva". 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 #65,382 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