uno vs us, What's the Difference?

Which to use

“uno” is a num and “us” is a pronoun - they look or sound alike but fill different roles in a sentence.

#77
“uno” frequency rank: #2,429
“us” frequency rank: 2506
confusion score

Side-by-Side Comparison

Feature	uno	us
Definition	La cantidad de una cosa solitaria (a saber, sin otros).	Nosotros (acusativo, dativo).

Where the eye mixes uno and us

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

uno

2 ch

Why the eye confuses uno with us

These two trip readers on the page rather than in the ear: uno is [ˈuno] while us is /ʌs/. 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 (num vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 2506, derived from the frequency rank of both members and their visual similarity.

uno is recorded at frequency rank #77, classified as anum, pronounced [ˈuno]. us is at rank #2,429, tagged as apron, pronounced /ʌs/.

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 2506, this pair ranks #320,177 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of uno vs us

Shared letters: u. Private to "uno": no. Private to "us": s.

"uno" · 3 letters · shape VCV · "us" · 2 letters · shape VC

Frequently Asked Questions

Do "uno" and "us" mean the same thing in a sentence?

No - they are not even the same part of speech. "uno" is a num and "us" a pronoun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Spanish text, does "uno" or "us" show up more?

"uno" is the more common of the two: it sits at frequency rank #77 in our Spanish list, against #2,429 for "us". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

Full dictionary entry for "uno" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "us" - compare definitions side by side with the headword page. Word entry
This pair ranks #320,177 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
"uno" and "us" also get mixed up with nearby pairs, the highest-scored neighbour is "UPN vs us". Nearby pair

Confusion rank #320,177 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.