cadeiravscaldeirãoTell them apart

Quick tell: cadeira is a noun, caldeirão is an adjective, so they fill different roles in a sentence.

Which to use

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

#2,820
“cadeira” frequency rank
#15,038
“caldeirão” frequency rank
17858
confusion score

Side-by-Side Comparison

Feature cadeira caldeirão
Definition objeto do mobiliário sobre o qual se assenta, normalmente composta por quatro pés, um assento e um encosto que faz, vende ou trata com caldeiros ou caldeiras

Where the eye mixes cadeira and caldeirão

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. cadeira runs 7 letters (CVCVVCV) against caldeirão's 9 (CVCCVVCVV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
cadeira
9 ch
caldeirão

Visual trap between cadeira and caldeirão

These two trip readers on the page rather than in the ear: cadeira is /kɐ.ˈdɐj.ɾɐ/ while caldeirão is Do masculino singular: /kal.dej.'ɾaŋ/; Do masculino plural: /kal.dej.'ɾaŋs/, /kal.dej.'ɾas/ ou /kal.dej.'ɾais/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 17858, derived from the frequency rank of both members and their visual similarity.

cadeira is recorded at frequency rank #2,820, classified as anoun, pronounced /kɐ.ˈdɐj.ɾɐ/. caldeirão is at rank #15,038, tagged as anadj, pronounced Do masculino singular: /kal.dej.'ɾaŋ/; Do masculino plural: /kal.dej.'ɾaŋs/, /kal.dej.'ɾas/ ou /kal.dej.'ɾais/.

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 17858, this pair ranks #53,278 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cadeira vs caldeirão

Shared letters: acdeir. Private to "cadeira": -. Private to "caldeirão": loã.

"cadeira" · 7 letters · shape CVCVVCV  ·  "caldeirão" · 9 letters · shape CVCCVVCVV

Known mistypes of this pair

  • cadeiraacdeira · caddeira · cadeiar · cadeirra · caderia · cadiera · caedira · ccadeira

Frequently Asked Questions

Is swapping "cadeira" for "caldeirão" ever safe?
No - they are not even the same part of speech. "cadeira" is a noun and "caldeirão" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "cadeira" or "caldeirão"?
"cadeira" is the more common of the two: it sits at frequency rank #2,820 in our Portuguese list, against #15,038 for "caldeirão". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "cadeira" and "caldeirão" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "cadeira" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "caldeirão" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #53,278 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "cadeira" and "caldeirão" also get mixed up with nearby pairs, the highest-scored neighbour is "cadeira vs clareira". 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 #53,278 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