sereiavssereisTell them apart

Quick tell: sereia is a noun, sereis is a verb, so they fill different roles in a sentence.

Which to use

“sereia” is a noun and “sereis” is a verb - they look or sound alike but fill different roles in a sentence.

#11,967
“sereia” frequency rank
#42,212
“sereis” frequency rank
54179
confusion score

Side-by-Side Comparison

Feature sereia sereis
Definition ser mitológico, metade peixe, metade mulher, cujo canto atraía navegantes para o fundo do mar segunda pessoa do plural do futuro do presente do indicativo do verbo ser.

Letter map: sereia vs sereis

Shared letters muted; letters that set sereia and sereis apart highlighted. Shared run: 5. sereia (CVCVVV) and sereis (CVCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
sereia
6 ch
sereis

Part-of-speech tell for sereia / sereis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sereia is anoun and sereisaverb. On the page they differ by a single letter - a in “sereia” becomes s in “sereis”. Our composite confusion score for this pair is 54179, derived from the frequency rank of both members and their visual similarity.

sereia is recorded at frequency rank #11,967, classified as anoun. sereis is at rank #42,212, tagged as averb, pronounced /se.ˈɾejs/.

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 54179, this pair ranks #11,471 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of sereia vs sereis

Shared letters: eirs. Private to "sereia": a. Private to "sereis": -.

"sereia" · 6 letters · shape CVCVVV  ·  "sereis" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • sereia ← esreia · seeria · sereai · seriea · serreia · sreeia · ssereia
  • sereis ← esreis · seeris · sereiss · seresi · serreis · sreeis · ssereis

Frequently Asked Questions

Do "sereia" and "sereis" mean the same thing in a sentence?
No - they are not even the same part of speech. "sereia" is a noun and "sereis" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "sereia" or "sereis" show up more?
"sereia" is the more common of the two: it sits at frequency rank #11,967 in our Portuguese list, against #42,212 for "sereis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "sereia" and "sereis".

  • Full dictionary entry for "sereia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sereis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #11,471 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "sereia" and "sereis" also get mixed up with nearby pairs, the highest-scored neighbour is "sereis vs serias". 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 #11,471 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