únicovsunityWhat's the difference?

Quick tell: único is a adjective, unity is a noun, so they fill different roles in a sentence.

Which to use

“único” is an adjective and “unity” is a noun - they look or sound alike but fill different roles in a sentence.

#368
“único” frequency rank
#32,024
“unity” frequency rank
32392
confusion score

Side-by-Side Comparison

Feature único unity
Definition Dícese de lo que hay uno y solo un ejemplar. Unidad.

Where the eye mixes único and unity

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

5 ch
único
5 ch
unity

Why the eye confuses único with unity

These two trip readers on the page rather than in the ear: único is [ˈuniko] while unity is /ˈjuː.nɪ.ti/. 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 32392, derived from the frequency rank of both members and their visual similarity.

único is recorded at frequency rank #368, classified as anadj, pronounced [ˈuniko]. unity is at rank #32,024, tagged as anoun, pronounced /ˈjuː.nɪ.ti/.

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 32392, this pair ranks #202,211 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of único vs unity

Shared letters: in. Private to "único": coú. Private to "unity": tuy.

"único" · 5 letters · shape VCVCV  ·  "unity" · 5 letters · shape VCVCV

Known mistypes of this pair

  • unitynuity · uinty · unitty · unityy · uniyt · unnity · untiy

Frequently Asked Questions

Is swapping "único" for "unity" ever safe?
No - they are not even the same part of speech. "único" is an adjective and "unity" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "único" or "unity" show up more?
"único" is the more common of the two: it sits at frequency rank #368 in our Spanish list, against #32,024 for "unity". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "único" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "unity" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #202,211 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "único" and "unity" also get mixed up with nearby pairs, the highest-scored neighbour is "unity vs UNIX". 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 #202,211 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