trásvstrustWhich spelling fits?

Quick tell: trás is a adverb, trust is a verb, so they fill different roles in a sentence.

Which to use

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

#860
“trás” frequency rank
#13,855
“trust” frequency rank
14715
confusion score

Side-by-Side Comparison

Feature trás trust
Definition depois de confiar

Letter map: trás vs trust

Shared letters muted; letters that set trás and trust apart highlighted. Shared run: 3. trás runs 4 letters (CCVC) against trust's 5 (CCVCC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
trás
5 ch
trust

Grammar separator: trás vs trust

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: trás is anadverb and trustaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 14715, derived from the frequency rank of both members and their visual similarity.

trás is recorded at frequency rank #860, classified as anadv. trust is at rank #13,855, tagged as averb.

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 14715, this pair ranks #57,284 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of trás vs trust

Shared letters: rst. Private to "trás": á. Private to "trust": u.

"trás" · 4 letters · shape CCVC  ·  "trust" · 5 letters · shape CCVCC

Known mistypes of this pair

  • trust ← rtust · trrust · trsut · trusst · trustt · truts · ttrust · turst

Frequently Asked Questions

Do "trás" and "trust" mean the same thing in a sentence?
No - they are not even the same part of speech. "trás" is an adverb and "trust" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "trás" or "trust" show up more?
"trás" is the more common of the two: it sits at frequency rank #860 in our Portuguese list, against #13,855 for "trust". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "trás" vs "trust" is on the table, pick a follow-up below.

  • Full dictionary entry for "trás" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "trust" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #57,284 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "trás" and "trust" also get mixed up with nearby pairs, the highest-scored neighbour is "tous vs trust". 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 #57,284 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