aptavsaptasTell them apart

Which to use

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

#20,890
“apta” frequency rank
#26,704
“aptas” frequency rank
47594
confusion score

Side-by-Side Comparison

Feature apta aptas
Definition Forma del femenino singular de apto. Forma del femenino plural de apto.

Where the eye mixes apta and aptas

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. apta runs 4 letters (VCCV) against aptas's 5 (VCCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
apta
5 ch
aptas

Look-alike desk: apta vs aptas

A purely visual mix-up. apta ([ˈapt̪a]) and aptas ([ˈapt̪as]) 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 extra letter(s) - “apta” sits inside “aptas”. Our composite confusion score for this pair is 47594, derived from the frequency rank of both members and their visual similarity.

apta is recorded at frequency rank #20,890, classified as anadj, pronounced [ˈapt̪a]. aptas is at rank #26,704, tagged as anadj, pronounced [ˈapt̪as].

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 47594, this pair ranks #119,203 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of apta vs aptas

Shared letters: apt. Private to "apta": -. Private to "aptas": s.

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

Known mistypes of this pair

  • aptaapat · appta · aptta
  • aptasapats · apptas · aptass · aptsa · apttas

Frequently Asked Questions

Is swapping "apta" for "aptas" ever safe?
No. They are said differently ([ˈapt̪a] versus [ˈapt̪as]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "apta" or "aptas"?
"apta" is the more common of the two: it sits at frequency rank #20,890 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 "apta" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aptas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #119,203 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "apta" and "aptas" 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 #119,203 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