seisvsseráWhat's the difference?

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

Which to use

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

#542
“seis” frequency rank
#143
“será” frequency rank
685
confusion score

Side-by-Side Comparison

Feature seis será
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) terceira pessoa do singular do futuro do presente do indicativo do verbo ser

Letter map: seis vs será

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

4 ch
seis
4 ch
será

Role in the sentence - seis and será

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seis is anum and seráaverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 685, derived from the frequency rank of both members and their visual similarity.

seis is recorded at frequency rank #542, classified as anum. será is at rank #143, tagged as averb, pronounced /se.ˈɾa/.

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 685, this pair ranks #74,977 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of seis vs será

Shared letters: es. Private to "seis": i. Private to "será": .

"seis" · 4 letters · shape CVVC  ·  "será" · 4 letters · shape CVCV

Known mistypes of this pair

  • seisesis · seiss · sesi · sies · sseis

Frequently Asked Questions

Is swapping "seis" for "será" ever safe?
No - they are not even the same part of speech. "seis" is a num and "será" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "seis" or "será" show up more?
"será" is the more common of the two: it sits at frequency rank #143 in our Portuguese list, against #542 for "seis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "seis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "será" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #74,977 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seis" and "será" also get mixed up with nearby pairs, the highest-scored neighbour is "senda vs será". 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 #74,977 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