asustarvsasustaronWhat's the difference?

Which to use

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

#16,268
“asustar” frequency rank
#49,438
“asustaron” frequency rank
65706
confusion score

Side-by-Side Comparison

Feature asustar asustaron
Definition Dar un susto. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del pretérito perfecto simple de indicativo de asustar o de asustarse.

Where the eye mixes asustar and asustaron

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. asustar runs 7 letters (VCVCCVC) against asustaron's 9 (VCVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
asustar
9 ch
asustaron

Why the eye confuses asustar with asustaron

A purely visual mix-up. asustar ([asusˈt̪aɾ]) and asustaron ([asusˈt̪aɾõn]) 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 2 extra letter(s) - “asustar” sits inside “asustaron”. Our composite confusion score for this pair is 65706, derived from the frequency rank of both members and their visual similarity.

asustar is recorded at frequency rank #16,268, classified as averb, pronounced [asusˈt̪aɾ]. asustaron is at rank #49,438, tagged as averb, pronounced [asusˈt̪aɾõn].

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 65706, this pair ranks #41,864 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of asustar vs asustaron

Shared letters: arstu. Private to "asustar": -. Private to "asustaron": no.

"asustar" · 7 letters · shape VCVCCVC  ·  "asustaron" · 9 letters · shape VCVCCVCVC

Known mistypes of this pair

  • asustar ← assustar · assutar · asusatr · asusstar · asustarr · asustra · asusttar · asutsar
  • asustaron ← assustaron · assutaron · asusatron · asusstaron · asustaorn · asustarno · asustaronn · asustarron

Frequently Asked Questions

Can "asustar" and "asustaron" be used interchangeably?
No. They are said differently ([asusˈt̪aɾ] versus [asusˈt̪aɾõn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "asustar" vs "asustaron" - which ranks higher?
"asustar" is the more common of the two: it sits at frequency rank #16,268 in our Spanish list, against #49,438 for "asustaron". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "asustar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "asustaron" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #41,864 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "asustar" and "asustaron" also get mixed up with nearby pairs, the highest-scored neighbour is "abusaron vs asustaron". 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 #41,864 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