travstrêsTell them apart

Quick tell: tra is a noun, três is a num, so they fill different roles in a sentence.

Which to use

“tra” is a noun and “três” is a num - they look or sound alike but fill different roles in a sentence.

#27,694
“tra” frequency rank
#167
“três” frequency rank
27861
confusion score

Side-by-Side Comparison

Feature tra três
Definition coisa número equivalente a dois mais um; cardinalidade de um conjunto que contenha dois elementos e outro elemento distinto; representado pelo símbolo 3 (algarismos arábicos) ou III (algarismos romanos)

Where the eye mixes tra and três

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
tra
4 ch
três

Look-alike desk: tra vs três

These two trip readers on the page rather than in the ear: tra is /tʀa/ while três is /ˈtɾeʃ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs num), which is usually the fastest check. Our composite confusion score for this pair is 27861, derived from the frequency rank of both members and their visual similarity.

tra is recorded at frequency rank #27,694, classified as anoun, pronounced /tʀa/. três is at rank #167, tagged as anum, pronounced /ˈtɾeʃ/.

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 27861, this pair ranks #41,053 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tra vs três

Shared letters: rt. Private to "tra": a. Private to "três": .

"tra" · 3 letters · shape CCV  ·  "três" · 4 letters · shape CCVC

Frequently Asked Questions

Can "tra" and "três" be used interchangeably?
No - they are not even the same part of speech. "tra" is a noun and "três" a num, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "tra" vs "três" - which ranks higher?
"três" is the more common of the two: it sits at frequency rank #167 in our Portuguese list, against #27,694 for "tra". 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 "tra" and "três" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "tra" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "três" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #41,053 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "tra" and "três" also get mixed up with nearby pairs, the highest-scored neighbour is "tra vs trema". Nearby pair

Confusion rank #41,053 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