sismovssitoWhich spelling fits?

Quick tell: sismo is a noun, sito is an adjective, so they fill different roles in a sentence.

Which to use

“sismo” is a noun and “sito” is an adjective - they look or sound alike but fill different roles in a sentence.

#27,672
“sismo” frequency rank
#30,723
“sito” frequency rank
58395
confusion score

Side-by-Side Comparison

Feature sismo sito
Definition designação científica do terremoto situado

Letter map: sismo vs sito

Shared letters muted; letters that set sismo and sito apart highlighted. Shared run: 3.

5 ch
sismo
4 ch
sito

Part-of-speech tell for sismo / sito

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sismo is anoun and sitoanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 58395, derived from the frequency rank of both members and their visual similarity.

sismo is recorded at frequency rank #27,672, classified as anoun. sito is at rank #30,723, tagged as anadj.

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 58395, this pair ranks #8,768 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of sismo vs sito

Shared letters: ios. Private to "sismo": m. Private to "sito": t.

"sismo" · 5 letters · shape CVCCV  ·  "sito" · 4 letters · shape CVCV

Known mistypes of this pair

  • sismoissmo · simso · sismmo · sisom · sissmo · ssimo · ssismo
  • sitosiot · sitto · ssito · stio

Frequently Asked Questions

Is swapping "sismo" for "sito" ever safe?
No - they are not even the same part of speech. "sismo" is a noun and "sito" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "sismo" or "sito" show up more?
"sismo" is the more common of the two: it sits at frequency rank #27,672 in our Portuguese list, against #30,723 for "sito". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "sismo" vs "sito" 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 "sito" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #8,768 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sismo" and "sito" also get mixed up with nearby pairs, the highest-scored neighbour is "sire vs sito". 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 #8,768 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