trás vs trois, What's the Difference?

Which to use

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

#860
“trás” frequency rank: #23,855
“trois” frequency rank: 24715
confusion score

Side-by-Side Comparison

Feature	trás	trois
Definition	depois de	três (3, III):

Letter map: trás vs trois

Shared letters muted; letters that set trás and trois apart highlighted. Shared run: 3.

4 ch

trás

5 ch

trois

Grammar separator: trás vs trois

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: trás is anadverb and troisanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 24715, derived from the frequency rank of both members and their visual similarity.

trás is recorded at frequency rank #860, classified as anadv. 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 24715, this pair ranks #44,825 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of trás vs trois

Shared letters: rst. Private to "trás": á. Private to "trois": io.

"trás" · 4 letters · shape CCVC · "trois" · 5 letters · shape CCVVC

Known mistypes of this pair

trois ← rtois · toris · trios · troiss · trosi · trrois · ttrois

Frequently Asked Questions

Do "trás" and "trois" mean the same thing in a sentence?

No - they are not even the same part of speech. "trás" is an adverb and "trois" an adjective, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "trás" vs "trois" - which ranks higher?

"trás" is the more common of the two: it sits at frequency rank #860 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.

Useful next steps

You've compared "trás" and "trois". Here's where to go from here.

Full dictionary entry for "trás" 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 #44,825 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"trás" 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 #44,825 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.