sismovssustoWhat's the difference?

Which to use

“sismo” and “susto” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#27,672
“sismo” frequency rank
#8,693
“susto” frequency rank
36365
confusion score

Side-by-Side Comparison

Feature sismo susto
Definition designação científica do terremoto sobressalto causado por evento não esperado; surpresa vigorosa e momentânea

Letter map: sismo vs susto

Shared letters muted; letters that set sismo and susto apart highlighted. Shared run: 3. sismo and susto follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
sismo
5 ch
susto

Pair insight - sismo / susto

sismo and susto are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 36365, derived from the frequency rank of both members and their visual similarity.

sismo is recorded at frequency rank #27,672, classified as anoun. susto is at rank #8,693, tagged as anoun, pronounced /ˈsuʃ.tu/.

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 36365, this pair ranks #30,473 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of sismo vs susto

Shared letters: os. Private to "sismo": im. Private to "susto": tu.

"sismo" · 5 letters · shape CVCCV  ·  "susto" · 5 letters · shape CVCCV

Known mistypes of this pair

  • sismo ← issmo · simso · sismmo · sisom · sissmo · ssimo · ssismo
  • susto ← ssusto · ssuto · susot · sussto · sustto · sutso · ussto

Frequently Asked Questions

Can "sismo" and "susto" be used interchangeably?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "sismo" vs "susto" - which ranks higher?
"susto" is the more common of the two: it sits at frequency rank #8,693 in our Portuguese list, against #27,672 for "sismo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "sismo" vs "susto" is on the table, pick a follow-up below.

  • Full dictionary entry for "sismo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "susto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,473 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sismo" and "susto" also get mixed up with nearby pairs, the highest-scored neighbour is "sadismo vs sismo". 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 #30,473 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