seekvsseisWhich spelling fits?

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

Which to use

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

#39,853
“seek” frequency rank
#542
“seis” frequency rank
40395
confusion score

Side-by-Side Comparison

Feature seek seis
Definition procurar 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: seek vs seis

Shared letters muted; letters that set seek and seis apart highlighted. Shared run: 2. seek and seis follow the identical consonant-vowel pattern (CVVC). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
seek
4 ch
seis

Role in the sentence - seek and seis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seek is averb and seisanum. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 40395, derived from the frequency rank of both members and their visual similarity.

seek is recorded at frequency rank #39,853, classified as averb, pronounced /siːk/, /sēk/. 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 40395, this pair ranks #25,734 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seek vs seis

Shared letters: es. Private to "seek": k. Private to "seis": i.

"seek" · 4 letters · shape CVVC  ·  "seis" · 4 letters · shape CVVC

Known mistypes of this pair

  • seek ← esek · seekk · sek · seke · sseek
  • seis ← esis · seiss · sesi · sies · sseis

Frequently Asked Questions

Can "seek" and "seis" be used interchangeably?
No - they are not even the same part of speech. "seek" is a verb and "seis" a num, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "seek" or "seis" show up more?
"seis" is the more common of the two: it sits at frequency rank #542 in our Portuguese list, against #39,853 for "seek". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "seek" and "seis". Here's where to go from here.

  • Full dictionary entry for "seek" 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 #25,734 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seek" and "seis" also get mixed up with nearby pairs, the highest-scored neighbour is "seek vs seno". 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 #25,734 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