Which to use
“ácido” is an adjective and “aviso” is a noun - they look or sound alike but fill different roles in a sentence.
- #4,212
- “ácido” frequency rank
- #2,592
- “aviso” frequency rank
- 6804
- confusion score
Side-by-Side Comparison
| Feature | ácido | aviso |
|---|---|---|
| Definition | Que tiene uno de los sabores básicos, como el del limón o el vinagre, producido por la concentración de iones hidronios. | Advertencia o indicación que se transmite a alguien. |
Where the eye mixes ácido and aviso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: ácido vs aviso
These two trip readers on the page rather than in the ear: ácido is [ˈasið̞o] while aviso is [aˈβ̞iso]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 6804, derived from the frequency rank of both members and their visual similarity.
ácido is recorded at frequency rank #4,212, classified as anadj, pronounced [ˈasið̞o]. aviso is at rank #2,592, tagged as anoun, pronounced [aˈβ̞iso].
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 6804, this pair ranks #309,756 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of ácido vs aviso
Shared letters: io. Private to "ácido": cdá. Private to "aviso": asv.
"ácido" · 5 letters · shape VCVCV · "aviso" · 5 letters · shape VCVCV
Known mistypes of this pair
- aviso ← abiso · aivso · avios · avisso · avsio · avviso · vaiso
Frequently Asked Questions
Can "ácido" and "aviso" be used interchangeably?
Frequency check: "ácido" vs "aviso" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ácido" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aviso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #309,756 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "ácido" and "aviso" also get mixed up with nearby pairs, the highest-scored neighbour is "ácido vs alió". 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 #309,756 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.