seatvsseisWhich spelling fits?

Quick tell: seat is a noun, seis is a num, so they fill different roles in a sentence.

Which to use

“seat” is a noun and “seis” is a num - they look or sound alike but fill different roles in a sentence.

#34,459
“seat” frequency rank
#542
“seis” frequency rank
35001
confusion score

Side-by-Side Comparison

Feature seat seis
Definition cadeira (lugar ocupado por membro de uma corporação) número equivalente a cinco mais um; cardinalidade de um conjunto que contenha seis elementos distintos; representado pelo símbolo 6 (algarismos arábicos) ou VI (algarismos romanos)

Letter map: seat vs seis

Shared letters muted; letters that set seat and seis apart highlighted. Shared run: 2.

4 ch
seat
4 ch
seis

Part-of-speech tell for seat / seis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seat is anoun and seisanum. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 35001, derived from the frequency rank of both members and their visual similarity.

seat is recorded at frequency rank #34,459, classified as anoun, pronounced /siːt/. seis is at rank #542, tagged as anum.

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 35001, this pair ranks #32,138 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seat vs seis

Shared letters: es. Private to "seat": at. Private to "seis": i.

"seat" · 4 letters · shape CVVC  ·  "seis" · 4 letters · shape CVVC

Known mistypes of this pair

  • seatesat · saet · seatt · sseat
  • seisesis · seiss · sesi · sies · sseis

Frequently Asked Questions

Do "seat" and "seis" mean the same thing in a sentence?
No - they are not even the same part of speech. "seat" is a noun and "seis" a num, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "seat" vs "seis" - which ranks higher?
"seis" is the more common of the two: it sits at frequency rank #542 in our Portuguese list, against #34,459 for "seat". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "seat" and "seis".

  • Full dictionary entry for "seat" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #32,138 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seat" and "seis" also get mixed up with nearby pairs, the highest-scored neighbour is "seat vs soap". 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 #32,138 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