Which to use
“cadeira” and “cafeína” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,820
- “cadeira” frequency rank
- #19,354
- “cafeína” frequency rank
- 22174
- confusion score
Side-by-Side Comparison
| Feature | cadeira | cafeína |
|---|---|---|
| Definition | objeto do mobiliário sobre o qual se assenta, normalmente composta por quatro pés, um assento e um encosto | alcaloide do grupo das xantinas usado como estimulante, C₈H₁₀N₄O₂ |
Where the eye mixes cadeira and cafeína
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. cadeira and cafeína follow the identical consonant-vowel pattern (CVCVVCV). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses cadeira with cafeína
A purely visual mix-up. cadeira (/kɐ.ˈdɐj.ɾɐ/) and cafeína ([kafeˈina], plural: [kafeˈinas]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 22174, 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/. cafeína is at rank #19,354, tagged as anoun, pronounced [kafeˈina], plural: [kafeˈinas].
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 22174, this pair ranks #47,929 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cadeira vs cafeína
Shared letters: ace. Private to "cadeira": dir. Private to "cafeína": fní.
"cadeira" · 7 letters · shape CVCVVCV · "cafeína" · 7 letters · shape CVCVVCV
Known mistypes of this pair
- cadeira ← acdeira · caddeira · cadeiar · cadeirra · caderia · cadiera · caedira · ccadeira
Frequently Asked Questions
Do "cadeira" and "cafeína" mean the same thing in a sentence?
Frequency check: "cadeira" vs "cafeína" - which ranks higher?
What to do next
Eye-level mix-up between "cadeira" and "cafeína" 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 "cafeína" - compare definitions side by side with the headword page. Word entry
- This pair ranks #47,929 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "cadeira" and "cafeína" also get mixed up with nearby pairs, the highest-scored neighbour is "cabina vs cafeína". 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 #47,929 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.