Which to use
“acostar” and “asustar” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #25,508
- “acostar” frequency rank
- #16,268
- “asustar” frequency rank
- 41776
- confusion score
Side-by-Side Comparison
| Feature | acostar | asustar |
|---|---|---|
| Definition | Echar o tender a alguno para que duerma o descanse, y con especialidad en la cama. | Dar un susto. |
Where the eye mixes acostar and asustar
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. acostar and asustar follow the identical consonant-vowel pattern (VCVCCVC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses acostar with asustar
A purely visual mix-up. acostar ([akosˈt̪aɾ]) and asustar ([asusˈt̪aɾ]) 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 41776, derived from the frequency rank of both members and their visual similarity.
acostar is recorded at frequency rank #25,508, classified as averb, pronounced [akosˈt̪aɾ]. asustar is at rank #16,268, tagged as averb, pronounced [asusˈt̪aɾ].
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 41776, this pair ranks #151,854 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of acostar vs asustar
Shared letters: arst. Private to "acostar": co. Private to "asustar": u.
"acostar" · 7 letters · shape VCVCCVC · "asustar" · 7 letters · shape VCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Can "acostar" and "asustar" be used interchangeably?
Frequency check: "acostar" vs "asustar" - which ranks higher?
Useful next steps
Eye-level mix-up between "acostar" and "asustar" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "acostar" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "asustar" - compare definitions side by side with the headword page. Word entry
- This pair ranks #151,854 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "acostar" and "asustar" also get mixed up with nearby pairs, the highest-scored neighbour is "acorta vs acostar". 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 #151,854 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.