afilarvsaislarConfusable pair

Which to use

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

#45,712
“afilar” frequency rank
#17,327
“aislar” frequency rank
63039
confusion score

Side-by-Side Comparison

Feature afilar aislar
Definition Afinar, alisar, sacar la punta o el filo a cualquier instrumento cortante o punzante. Separar algo o alguien, previniendo el ulterior contacto.

Where the eye mixes afilar and aislar

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. afilar (VCVCVC) and aislar (VVCCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
afilar
6 ch
aislar

Why the eye confuses afilar with aislar

A purely visual mix-up. afilar ([afiˈlaɾ]) and aislar ([ajsˈlaɾ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 63039, derived from the frequency rank of both members and their visual similarity.

afilar is recorded at frequency rank #45,712, classified as averb, pronounced [afiˈlaɾ]. aislar is at rank #17,327, tagged as averb, pronounced [ajsˈlaɾ].

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 63039, this pair ranks #50,055 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of afilar vs aislar

Shared letters: ailr. Private to "afilar": f. Private to "aislar": s.

"afilar" · 6 letters · shape VCVCVC  ·  "aislar" · 6 letters · shape VVCCVC

Known mistypes of this pair

  • afilaraffilar · afialr · afilarr · afillar · afilra · afliar · aiflar · failar
  • aislarailsar · aisalr · aislarr · aisllar · aislra · aisslar · asilar · iaslar

Frequently Asked Questions

Is swapping "afilar" for "aislar" ever safe?
No. They are said differently ([afiˈlaɾ] versus [ajsˈlaɾ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "afilar" or "aislar"?
"aislar" is the more common of the two: it sits at frequency rank #17,327 in our Spanish list, against #45,712 for "afilar". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "afilar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aislar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #50,055 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "afilar" and "aislar" also get mixed up with nearby pairs, the highest-scored neighbour is "afilar vs aviar". 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 #50,055 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