alertanvsalternanConfusable pair

Which to use

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

#45,722
“alertan” frequency rank
#37,941
“alternan” frequency rank
83663
confusion score

Side-by-Side Comparison

Feature alertan alternan
Definition Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de alertar. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de alternar.

Where the eye mixes alertan and alternan

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. alertan runs 7 letters (VCVCCVC) against alternan's 8 (VCCVCCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
alertan
8 ch
alternan

Why the eye confuses alertan with alternan

A purely visual mix-up. alertan ([aˈleɾt̪ãn]) and alternan ([al̪ˈt̪eɾnãn]) 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 83663, derived from the frequency rank of both members and their visual similarity.

alertan is recorded at frequency rank #45,722, classified as averb, pronounced [aˈleɾt̪ãn]. alternan is at rank #37,941, tagged as averb, pronounced [al̪ˈt̪eɾnãn].

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 83663, this pair ranks #7,893 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of alertan vs alternan

Shared letters: aelnrt. Private to "alertan": -. Private to "alternan": -.

"alertan" · 7 letters · shape VCVCCVC  ·  "alternan" · 8 letters · shape VCCVCCVC

Known mistypes of this pair

  • alertan ← aelrtan · aleratn · alerrtan · alertann · alertna · alerttan · allertan · alretan
  • alternan ← aletrnan · allternan · altenran · alternann · alternnan · alterrnan · altrenan · altternan

Frequently Asked Questions

Is swapping "alertan" for "alternan" ever safe?
No. They are said differently ([aˈleɾt̪ãn] versus [al̪ˈt̪eɾnãn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "alertan" or "alternan" show up more?
"alternan" is the more common of the two: it sits at frequency rank #37,941 in our Spanish list, against #45,722 for "alertan". 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 "alertan" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "alternan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #7,893 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "alertan" and "alternan" also get mixed up with nearby pairs, the highest-scored neighbour is "alertan vs apartan". 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 #7,893 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