uñavsUNIXWhat's the difference?

Quick tell: uña is a noun, UNIX is a name, so they fill different roles in a sentence.

Which to use

“uña” is a noun and “UNIX” is a name - they look or sound alike but fill different roles in a sentence.

#16,473
“uña” frequency rank
#41,113
“UNIX” frequency rank
57586
confusion score

Side-by-Side Comparison

Feature uña UNIX
Definition Capa queratinosa (córnea) que recubre el extremo de los dedos del hombre y de algunos animales. Algunos felinos, como los gatos, tienen uñas retráctiles. Sistema operativo multitárea y multiusuario desarrollado en 1969 por los ingenieros del laboratorio Bell de AT&T, UNIX implementó la estructura POSIX, usada actualmente por otros sistemas operativos como Linux, Solaris o BSD.

Where the eye mixes uña and UNIX

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. uña runs 3 letters (VCV) against UNIX's 4 (VCVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
uña
4 ch
UNIX

Look-alike desk: uña vs UNIX

These two trip readers on the page rather than in the ear: uña is [ˈuɲa] while UNIX is [uˈniks]. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 57586, derived from the frequency rank of both members and their visual similarity.

uña is recorded at frequency rank #16,473, classified as anoun, pronounced [ˈuɲa]. UNIX is at rank #41,113, tagged as aname, pronounced [uˈniks].

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 57586, this pair ranks #69,905 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of uña vs UNIX

Shared letters: u. Private to "uña": añ. Private to "UNIX": inx.

"uña" · 3 letters · shape VCV  ·  "UNIX" · 4 letters · shape VCVC

Known mistypes of this pair

  • UNIX ← nuix · uinx · unixx · unnix · unxi

Frequently Asked Questions

Is swapping "uña" for "UNIX" ever safe?
No - they are not even the same part of speech. "uña" is a noun and "UNIX" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "uña" or "UNIX" show up more?
"uña" is the more common of the two: it sits at frequency rank #16,473 in our Spanish list, against #41,113 for "UNIX". 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 "uña" and "UNIX" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "uña" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "UNIX" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #69,905 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "uña" and "UNIX" also get mixed up with nearby pairs, the highest-scored neighbour is "ubi 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 #69,905 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