único vs UNIX, What's the Difference?

Which to use

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

#368
“único” frequency rank: #41,113
“UNIX” frequency rank: 41481
confusion score

Side-by-Side Comparison

Feature	único	UNIX
Definition	Dícese de lo que hay uno y solo un ejemplar.	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 spellings diverge

Shared letters are muted; the letters that actually set único and UNIX apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

5 ch

único

4 ch

UNIX

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: único is [ˈuniko] 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 (adjective vs name), which is usually the fastest check. Our composite confusion score for this pair is 41481, derived from the frequency rank of both members and their visual similarity.

único is recorded at frequency rank #368, classified as anadj, pronounced [ˈuniko]. 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 41481, this pair ranks #153,395 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of único vs UNIX

Shared letters: in. Private to "único": coú. Private to "UNIX": ux.

"único" · 5 letters · shape VCVCV · "UNIX" · 4 letters · shape VCVC

Known mistypes of this pair

UNIX ← nuix · uinx · unixx · unnix · unxi

Frequency comparison

único#368

UNIX#41,113

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "único" and "UNIX" be used interchangeably?

No - they are not even the same part of speech. "único" is an adjective and "UNIX" a name, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "único" or "UNIX"?

"único" is the more common of the two: it sits at frequency rank #368 in our Spanish list, against #41,113 for "UNIX". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering único vs UNIX

The fastest way to pick the right one every time.

Check the role first: if you need an adjective, it's “único”; for a name, it's “UNIX”.
See each word in full, definition, IPA, etymology and its other confusables. Full “único” entry
Browse more pairs most likely to be confused. Most confusable