trocavstroisTell them apart

Quick tell: troca is a noun, trois is an adjective, so they fill different roles in a sentence.

Which to use

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

#1,264
“troca” frequency rank
#23,855
“trois” frequency rank
25119
confusion score

Side-by-Side Comparison

Feature troca trois
Definition o ato de trocar; substituir uma coisa por outra três (3, III):

Where the eye mixes troca and trois

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

5 ch
troca
5 ch
trois

Why the eye confuses troca with trois

These two trip readers on the page rather than in the ear: troca is /ˈtɾɔ.kɐ/ while trois is /tʁwa/, /tʁwɑ/, /tʀwa/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 25119, derived from the frequency rank of both members and their visual similarity.

troca is recorded at frequency rank #1,264, classified as anoun, pronounced /ˈtɾɔ.kɐ/. trois is at rank #23,855, tagged as anadj, pronounced /tʁwa/, /tʁwɑ/, /tʀwa/.

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 25119, this pair ranks #44,264 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of troca vs trois

Shared letters: ort. Private to "troca": ac. Private to "trois": is.

"troca" · 5 letters · shape CCVCV  ·  "trois" · 5 letters · shape CCVVC

Known mistypes of this pair

  • trocartoca · torca · trcoa · troac · trocca · trroca · ttroca
  • troisrtois · toris · trios · troiss · trosi · trrois · ttrois

Frequently Asked Questions

Do "troca" and "trois" mean the same thing in a sentence?
No - they are not even the same part of speech. "troca" is a noun and "trois" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "troca" or "trois"?
"troca" is the more common of the two: it sits at frequency rank #1,264 in our Portuguese list, against #23,855 for "trois". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Eye-level mix-up between "troca" and "trois" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "troca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "trois" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #44,264 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "troca" and "trois" also get mixed up with nearby pairs, the highest-scored neighbour is "tous vs trois". 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 #44,264 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