caseirovscheiroWhich spelling fits?

Quick tell: caseiro is a adjective, cheiro is a noun, so they fill different roles in a sentence.

Which to use

“caseiro” is an adjective and “cheiro” is a noun - they look or sound alike but fill different roles in a sentence.

#11,023
“caseiro” frequency rank
#2,083
“cheiro” frequency rank
13106
confusion score

Side-by-Side Comparison

Feature caseiro cheiro
Definition que é feito em casa odor, aroma

Where the eye mixes caseiro and cheiro

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

7 ch
caseiro
6 ch
cheiro

Visual trap between caseiro and cheiro

These two trip readers on the page rather than in the ear: caseiro is /kɐ.ˈzɐj.ɾu/ while cheiro is /ˈʃɐj.ɾu/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 13106, derived from the frequency rank of both members and their visual similarity.

caseiro is recorded at frequency rank #11,023, classified as anadj, pronounced /kɐ.ˈzɐj.ɾu/. cheiro is at rank #2,083, tagged as anoun, pronounced /ˈʃɐj.ɾu/.

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 13106, this pair ranks #59,343 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of caseiro vs cheiro

Shared letters: ceior. Private to "caseiro": as. Private to "cheiro": h.

"caseiro" · 7 letters · shape CVCVVCV  ·  "cheiro" · 6 letters · shape CCVVCV

Known mistypes of this pair

  • caseiroacseiro · caesiro · caseior · caseirro · caserio · casiero · casseiro · ccaseiro
  • cheiroccheiro · cehiro · cheior · cheirro · cherio · chheiro · chiero · hceiro

Frequently Asked Questions

Can "caseiro" and "cheiro" be used interchangeably?
No - they are not even the same part of speech. "caseiro" is an adjective and "cheiro" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "caseiro" or "cheiro"?
"cheiro" is the more common of the two: it sits at frequency rank #2,083 in our Portuguese list, against #11,023 for "caseiro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "caseiro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cheiro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #59,343 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "caseiro" and "cheiro" also get mixed up with nearby pairs, the highest-scored neighbour is "caseiro vs coveiro". 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 #59,343 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