aptasvsaptoWhat's the difference?

Which to use

“aptas” and “apto” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#26,704
“aptas” frequency rank
#11,711
“apto” frequency rank
38415
confusion score

Side-by-Side Comparison

Feature aptas apto
Definition Forma del femenino plural de apto. Que sirve, es adecuado o está disponible para un fin o propósito

Where the eye mixes aptas and apto

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
aptas
4 ch
apto

Why the eye confuses aptas with apto

A purely visual mix-up. aptas ([ˈapt̪as]) and apto ([ˈapt̪o]) 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 1 letter(s) in length. Our composite confusion score for this pair is 38415, 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]. apto is at rank #11,711, tagged as anadj, pronounced [ˈapt̪o].

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 38415, this pair ranks #170,153 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aptas vs apto

Shared letters: apt. Private to "aptas": s. Private to "apto": o.

"aptas" · 5 letters · shape VCCVC  ·  "apto" · 4 letters · shape VCCV

Known mistypes of this pair

  • aptasapats · apptas · aptass · aptsa · apttas
  • aptoapot · appto · aptto · atpo

Frequently Asked Questions

Is swapping "aptas" for "apto" ever safe?
No. They are said differently ([ˈapt̪as] versus [ˈapt̪o]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "aptas" vs "apto" - which ranks higher?
"apto" is the more common of the two: it sits at frequency rank #11,711 in our Spanish list, against #26,704 for "aptas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "aptas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "apto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #170,153 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "aptas" and "apto" also get mixed up with nearby pairs, the highest-scored neighbour is "apis vs aptas". 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 #170,153 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list