acosovsasoWhich spelling fits?

Quick tell: acoso is a noun, aso is a verb, so they fill different roles in a sentence.

Which to use

“acoso” is a noun and “aso” is a verb - they look or sound alike but fill different roles in a sentence.

#5,364
“acoso” frequency rank
#37,435
“aso” frequency rank
42799
confusion score

Side-by-Side Comparison

Feature acoso aso
Definition Acción o efecto de acosar. Primera persona del singular (yo) del presente de indicativo de asar.

Where the eye mixes acoso and aso

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. acoso runs 5 letters (VCVCV) against aso's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
acoso
3 ch
aso

Visual trap between acoso and aso

These two trip readers on the page rather than in the ear: acoso is [aˈkoso] while aso is [ˈaso]. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 42799, derived from the frequency rank of both members and their visual similarity.

acoso is recorded at frequency rank #5,364, classified as anoun, pronounced [aˈkoso]. aso is at rank #37,435, tagged as averb, pronounced [ˈaso].

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 42799, this pair ranks #146,230 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acoso vs aso

Shared letters: aos. Private to "acoso": c. Private to "aso": -.

"acoso" · 5 letters · shape VCVCV  ·  "aso" · 3 letters · shape VCV

Known mistypes of this pair

  • acoso ← accoso · acoos · acosso · acsoo · aocso · caoso

Frequently Asked Questions

Can "acoso" and "aso" be used interchangeably?
No - they are not even the same part of speech. "acoso" is a noun and "aso" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "acoso" or "aso" show up more?
"acoso" is the more common of the two: it sits at frequency rank #5,364 in our Spanish list, against #37,435 for "aso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "acoso" and "aso" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "acoso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aso" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #146,230 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "acoso" and "aso" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs aso". 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 #146,230 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