unovsupsWhich spelling fits?

Quick tell: uno is a num, ups is an intj, so they fill different roles in a sentence.

Which to use

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

#77
“uno” frequency rank
#12,732
“ups” frequency rank
12809
confusion score

Side-by-Side Comparison

Feature uno ups
Definition La cantidad de una cosa solitaria (a saber, sin otros). Expresa que se ha cometido un error

Where the eye mixes uno and ups

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

3 ch
uno
3 ch
ups

Look-alike desk: uno vs ups

These two trip readers on the page rather than in the ear: uno is [ˈuno] while ups is [ˈups]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (num vs intj), which is usually the fastest check. Our composite confusion score for this pair is 12809, derived from the frequency rank of both members and their visual similarity.

uno is recorded at frequency rank #77, classified as anum, pronounced [ˈuno]. ups is at rank #12,732, tagged as anintj, pronounced [ˈups].

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 12809, this pair ranks #290,176 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of uno vs ups

Shared letters: u. Private to "uno": no. Private to "ups": ps.

"uno" · 3 letters · shape VCV  ·  "ups" · 3 letters · shape VCC

Frequently Asked Questions

Can "uno" and "ups" be used interchangeably?
No - they are not even the same part of speech. "uno" is a num and "ups" an intj, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "uno" or "ups" show up more?
"uno" is the more common of the two: it sits at frequency rank #77 in our Spanish list, against #12,732 for "ups". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "uno" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ups" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #290,176 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "uno" and "ups" also get mixed up with nearby pairs, the highest-scored neighbour is "UPN vs ups". Nearby pair

Confusion rank #290,176 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