Which to use
“únicos” is an adjective and “unión” is a noun - they look or sound alike but fill different roles in a sentence.
- #3,531
- “únicos” frequency rank
- #904
- “unión” frequency rank
- 4435
- confusion score
Side-by-Side Comparison
| Feature | únicos | unión |
|---|---|---|
| Definition | Forma del masculino plural de único. | Acción y efecto de unir o unirse. |
Where the eye mixes únicos and unión
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses únicos with unión
These two trip readers on the page rather than in the ear: únicos is [ˈunikos] while unión is [uˈnjõn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 4435, derived from the frequency rank of both members and their visual similarity.
únicos is recorded at frequency rank #3,531, classified as anadj, pronounced [ˈunikos]. unión is at rank #904, tagged as anoun, pronounced [uˈnjõn].
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 4435, this pair ranks #316,106 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of únicos vs unión
Shared letters: in. Private to "únicos": cosú. Private to "unión": uó.
"únicos" · 6 letters · shape VCVCVC · "unión" · 5 letters · shape VCVVC
Frequently Asked Questions
Is swapping "únicos" for "unión" ever safe?
In ordinary Spanish text, does "únicos" or "unión" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "únicos" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "unión" - compare definitions side by side with the headword page. Word entry
- This pair ranks #316,106 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "únicos" and "unión" also get mixed up with nearby pairs, the highest-scored neighbour is "Unicode vs únicos". Nearby pair
Confusion rank #316,106 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.