curvovscustoConfusable pair

Quick tell: curvo is a adjective, custo is a noun, so they fill different roles in a sentence.

Which to use

“curvo” is an adjective and “custo” is a noun - they look or sound alike but fill different roles in a sentence.

#37,736
“curvo” frequency rank
#1,773
“custo” frequency rank
39509
confusion score

Side-by-Side Comparison

Feature curvo custo
Definition em forma de arco o quanto algo custa, o preço de algo

Where the eye mixes curvo and custo

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

5 ch
curvo
5 ch
custo

Visual trap between curvo and custo

These two trip readers on the page rather than in the ear: curvo is /ˈkuɾ.vu/ while custo is /ˈkuʃ.tu/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 39509, derived from the frequency rank of both members and their visual similarity.

curvo is recorded at frequency rank #37,736, classified as anadj, pronounced /ˈkuɾ.vu/. custo is at rank #1,773, tagged as anoun, pronounced /ˈkuʃ.tu/.

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 39509, this pair ranks #26,721 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of curvo vs custo

Shared letters: cou. Private to "curvo": rv. Private to "custo": st.

"curvo" · 5 letters · shape CVCCV  ·  "custo" · 5 letters · shape CVCCV

Known mistypes of this pair

  • curvoccurvo · cruvo · curov · currvo · curvvo · cuvro · ucrvo
  • custoccusto · csuto · cusot · cussto · custto · cutso · ucsto

Frequently Asked Questions

Can "curvo" and "custo" be used interchangeably?
No - they are not even the same part of speech. "curvo" is an adjective and "custo" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "curvo" or "custo" show up more?
"custo" is the more common of the two: it sits at frequency rank #1,773 in our Portuguese list, against #37,736 for "curvo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "curvo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "custo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #26,721 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "curvo" and "custo" also get mixed up with nearby pairs, the highest-scored neighbour is "curvado vs curvo". 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 #26,721 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