Which to use
“carta” and “causa” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #1,042
- “carta” frequency rank
- #340
- “causa” frequency rank
- 1382
- confusion score
Side-by-Side Comparison
| Feature | carta | causa |
|---|---|---|
| Definition | documento escrito que se endereça a uma pessoa | aquilo ou aquele que ocasiona um acontecimento ou faz que uma coisa exista |
Where the eye mixes carta and causa
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between carta and causa
A purely visual mix-up. carta (/ˈkaɾ.tɐ/) and causa (/ˈkaw.zɐ/) 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 2 positions. Our composite confusion score for this pair is 1382, derived from the frequency rank of both members and their visual similarity.
carta is recorded at frequency rank #1,042, classified as anoun, pronounced /ˈkaɾ.tɐ/. causa is at rank #340, tagged as anoun, pronounced /ˈkaw.zɐ/.
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 1382, this pair ranks #74,198 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of carta vs causa
Shared letters: ac. Private to "carta": rt. Private to "causa": su.
"carta" · 5 letters · shape CVCCV · "causa" · 5 letters · shape CVVCV
Known mistypes of this pair
Frequently Asked Questions
Do "carta" and "causa" mean the same thing in a sentence?
Frequency check: "carta" vs "causa" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "carta" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "causa" - compare definitions side by side with the headword page. Word entry
- This pair ranks #74,198 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "carta" and "causa" also get mixed up with nearby pairs, the highest-scored neighbour is "carta vs cerda". 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 #74,198 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.