Which to use
“algum” is a pronoun and “atum” is a noun - they look or sound alike but fill different roles in a sentence.
- #371
- “algum” frequency rank
- #16,684
- “atum” frequency rank
- 17055
- confusion score
Side-by-Side Comparison
| Feature | algum | atum |
|---|---|---|
| Definition | um certo | peixe da família dos Escombrídeos muito usado na alimentação quer em fresco, quer em conserva |
Letter map: algum vs atum
Shared letters muted; letters that set algum and atum apart highlighted. Shared run: 3. algum runs 5 letters (VCCVC) against atum's 4 (VCVC) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: algum vs atum
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: algum is apronoun and atumanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 17055, derived from the frequency rank of both members and their visual similarity.
algum is recorded at frequency rank #371, classified as apron. atum is at rank #16,684, tagged as anoun, pronounced /ɐ.ˈtũ/.
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 17055, this pair ranks #54,286 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of algum vs atum
Shared letters: amu. Private to "algum": gl. Private to "atum": t.
"algum" · 5 letters · shape VCCVC · "atum" · 4 letters · shape VCVC
Known mistypes of this pair
Frequently Asked Questions
Can "algum" and "atum" be used interchangeably?
Frequency check: "algum" vs "atum" - which ranks higher?
After this comparison
You've compared "algum" and "atum". Here's where to go from here.
- Full dictionary entry for "algum" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "atum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #54,286 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "algum" and "atum" also get mixed up with nearby pairs, the highest-scored neighbour is "atar vs atum". 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 #54,286 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.