seremvsserenoConfusable pair

Quick tell: serem is a verb, sereno is an adjective, so they fill different roles in a sentence.

Which to use

“serem” is a verb and “sereno” is an adjective - they look or sound alike but fill different roles in a sentence.

#812
“serem” frequency rank
#19,270
“sereno” frequency rank
20082
confusion score

Side-by-Side Comparison

Feature serem sereno
Definition terceira pessoa do plural do infinitivo pessoal do verbo ser: céu aberto, sem nuvens

Where the eye mixes serem and sereno

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

5 ch
serem
6 ch
sereno

Why the eye confuses serem with sereno

These two trip readers on the page rather than in the ear: serem is /ˈse.ɾẽ/ while sereno is /sɨ.ˈɾe.nu/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 20082, derived from the frequency rank of both members and their visual similarity.

serem is recorded at frequency rank #812, classified as averb, pronounced /ˈse.ɾẽ/. sereno is at rank #19,270, tagged as anadj, pronounced /sɨ.ˈɾe.nu/.

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 20082, this pair ranks #50,518 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of serem vs sereno

Shared letters: ers. Private to "serem": m. Private to "sereno": no.

"serem" · 5 letters · shape CVCVC  ·  "sereno" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • seremesrem · seerm · seremm · serme · serrem · sreem · sserem
  • serenoesreno · seerno · serenno · sereon · serneo · serreno · sreeno · ssereno

Frequently Asked Questions

Is swapping "serem" for "sereno" ever safe?
No - they are not even the same part of speech. "serem" is a verb and "sereno" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "serem" or "sereno"?
"serem" is the more common of the two: it sits at frequency rank #812 in our Portuguese list, against #19,270 for "sereno". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "serem" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sereno" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #50,518 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "serem" and "sereno" also get mixed up with nearby pairs, the highest-scored neighbour is "sereno vs sueño". 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 #50,518 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