álgidovsalióWhich spelling fits?

Quick tell: álgido is a adjective, alió is a verb, so they fill different roles in a sentence.

Which to use

“álgido” is an adjective and “alió” is a verb - they look or sound alike but fill different roles in a sentence.

#35,835
“álgido” frequency rank
#48,792
“alió” frequency rank
84627
confusion score

Side-by-Side Comparison

Feature álgido alió
Definition De una temperatura muy inferior a la normal o deseable; extremadamente frío. Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de aliar o de aliarse.

Where the eye mixes álgido and alió

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. álgido runs 6 letters (VCCVCV) against alió's 4 (VCVV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
álgido
4 ch
alió

Look-alike desk: álgido vs alió

These two trip readers on the page rather than in the ear: álgido is [ˈalxið̞o] while alió is [aˈljo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 84627, derived from the frequency rank of both members and their visual similarity.

álgido is recorded at frequency rank #35,835, classified as anadj, pronounced [ˈalxið̞o]. alió is at rank #48,792, tagged as averb, pronounced [aˈljo].

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 84627, this pair ranks #6,880 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of álgido vs alió

Shared letters: il. Private to "álgido": dgoá. Private to "alió": aó.

"álgido" · 6 letters · shape VCCVCV  ·  "alió" · 4 letters · shape VCVV

Frequently Asked Questions

Is swapping "álgido" for "alió" ever safe?
No - they are not even the same part of speech. "álgido" is an adjective and "alió" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "álgido" or "alió"?
"álgido" is the more common of the two: it sits at frequency rank #35,835 in our Spanish list, against #48,792 for "alió". 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 "álgido" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "alió" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #6,880 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "álgido" and "alió" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs apis". Nearby pair

Confusion rank #6,880 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