saiuvssimWhat's the difference?

Quick tell: saiu is a verb, sim is an adverb, so they fill different roles in a sentence.

Which to use

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

#1,035
“saiu” frequency rank
#147
“sim” frequency rank
1182
confusion score

Side-by-Side Comparison

Feature saiu sim
Definition Terceira pessoa do singular do pretérito perfeito do indicativo do verbo sair. exprime afirmação, acordo, aprovação, permissão ou consentimento

Letter map: saiu vs sim

Shared letters muted; letters that set saiu and sim apart highlighted. Shared run: 2. saiu runs 4 letters (CVVV) against sim's 3 (CVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
saiu
3 ch
sim

Grammar separator: saiu vs sim

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: saiu is averb and simanadverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 1182, derived from the frequency rank of both members and their visual similarity.

saiu is recorded at frequency rank #1,035, classified as averb. sim is at rank #147, tagged as anadv, pronounced /ˈsĩ/.

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 1182, this pair ranks #74,420 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of saiu vs sim

Shared letters: is. Private to "saiu": au. Private to "sim": m.

"saiu" · 4 letters · shape CVVV  ·  "sim" · 3 letters · shape CVC

Known mistypes of this pair

  • saiu ← asiu · saui · siau · ssaiu

Frequently Asked Questions

Can "saiu" and "sim" be used interchangeably?
No - they are not even the same part of speech. "saiu" is a verb and "sim" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "saiu" vs "sim" - which ranks higher?
"sim" is the more common of the two: it sits at frequency rank #147 in our Portuguese list, against #1,035 for "saiu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "saiu" and "sim".

  • Full dictionary entry for "saiu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sim" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #74,420 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "saiu" and "sim" also get mixed up with nearby pairs, the highest-scored neighbour is "saiu vs Sau". 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 #74,420 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