Which to use
“aptas” is an adjective and “Atan” is a name - they look or sound alike but fill different roles in a sentence.
- #26,704
- “aptas” frequency rank
- #36,936
- “Atan” frequency rank
- 63640
- confusion score
Side-by-Side Comparison
| Feature | aptas | Atan |
|---|---|---|
| Definition | Forma del femenino plural de apto. | Apellido. |
Where the eye mixes aptas and Atan
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses aptas with Atan
These two trip readers on the page rather than in the ear: aptas is [ˈapt̪as] while Atan is [ˈat̪ãn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs name), which is usually the fastest check. Our composite confusion score for this pair is 63640, derived from the frequency rank of both members and their visual similarity.
aptas is recorded at frequency rank #26,704, classified as anadj, pronounced [ˈapt̪as]. Atan is at rank #36,936, tagged as aname, pronounced [ˈat̪ãn].
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 63640, this pair ranks #48,104 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of aptas vs Atan
Shared letters: at. Private to "aptas": ps. Private to "Atan": n.
"aptas" · 5 letters · shape VCCVC · "Atan" · 4 letters · shape VCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "aptas" for "Atan" ever safe?
Which is more common, "aptas" or "Atan"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "aptas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Atan" - compare definitions side by side with the headword page. Word entry
- This pair ranks #48,104 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "aptas" and "Atan" also get mixed up with nearby pairs, the highest-scored neighbour is "Atan vs ataron". 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 #48,104 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.