seisvsseivaConfusable pair

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

Which to use

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

#542
“seis” frequency rank
#33,612
“seiva” frequency rank
34154
confusion score

Side-by-Side Comparison

Feature seis seiva
Definition 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) líquido nutritivo que circula nas plantas

Letter map: seis vs seiva

Shared letters muted; letters that set seis and seiva apart highlighted. Shared run: 3.

4 ch
seis
5 ch
seiva

Role in the sentence - seis and seiva

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seis is anum and seivaanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 34154, derived from the frequency rank of both members and their visual similarity.

seis is recorded at frequency rank #542, classified as anum. seiva is at rank #33,612, tagged as anoun, pronounced /ˈsɐj.vɐ/.

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 34154, this pair ranks #33,192 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seis vs seiva

Shared letters: eis. Private to "seis": -. Private to "seiva": av.

"seis" · 4 letters · shape CVVC  ·  "seiva" · 5 letters · shape CVVCV

Known mistypes of this pair

  • seisesis · seiss · sesi · sies · sseis
  • seivaesiva · seiav · seivva · sevia · sieva · sseiva

Frequently Asked Questions

Do "seis" and "seiva" mean the same thing in a sentence?
No - they are not even the same part of speech. "seis" is a num and "seiva" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "seis" or "seiva"?
"seis" is the more common of the two: it sits at frequency rank #542 in our Portuguese list, against #33,612 for "seiva". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "seis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "seiva" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #33,192 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seis" and "seiva" also get mixed up with nearby pairs, the highest-scored neighbour is "seiva vs senda". 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 #33,192 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