Which to use
“Atom” and “atum” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,578
- “Atom” frequency rank
- #16,684
- “atum” frequency rank
- 51262
- confusion score
Side-by-Side Comparison
| Feature | Atom | atum |
|---|---|---|
| Definition | átomo. | peixe da família dos Escombrídeos muito usado na alimentação quer em fresco, quer em conserva |
Where the eye mixes Atom and atum
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: Atom vs atum
A purely visual mix-up. Atom ([a'toːm], Plural: [a'toːmə].) and atum (/ɐ.ˈtũ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - o in “Atom” becomes u in “atum”. Our composite confusion score for this pair is 51262, derived from the frequency rank of both members and their visual similarity.
Atom is recorded at frequency rank #34,578, classified as anoun, pronounced [a'toːm], Plural: [a'toːmə].. 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 51262, this pair ranks #13,746 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of Atom vs atum
Shared letters: amt. Private to "Atom": o. Private to "atum": u.
"Atom" · 4 letters · shape VCVC · "atum" · 4 letters · shape VCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "Atom" for "atum" ever safe?
Frequency check: "Atom" vs "atum" - which ranks higher?
After this comparison
Eye-level mix-up between "Atom" and "atum" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "Atom" 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 #13,746 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "Atom" and "atum" also get mixed up with nearby pairs, the highest-scored neighbour is "Atom vs atroz". 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 #13,746 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.