usavsusanWhich spelling fits?

Which to use

“usa” and “usan” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#1,074
“usa” frequency rank
#2,098
“usan” frequency rank
3172
confusion score

Side-by-Side Comparison

Feature usa usan
Definition Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de usar o de usarse. Tercera persona del plural (ellos, ellas; ustedes, 2.ª persona) del presente de indicativo de usar o de usarse.

Where the eye mixes usa and usan

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

3 ch
usa
4 ch
usan

Why the eye confuses usa with usan

A purely visual mix-up. usa ([ˈusa]) and usan ([ˈusãn]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 extra letter(s) - “usa” sits inside “usan”. Our composite confusion score for this pair is 3172, derived from the frequency rank of both members and their visual similarity.

usa is recorded at frequency rank #1,074, classified as averb, pronounced [ˈusa]. usan is at rank #2,098, tagged as averb, pronounced [ˈusãn].

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 3172, this pair ranks #318,892 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of usa vs usan

Shared letters: asu. Private to "usa": -. Private to "usan": n.

"usa" · 3 letters · shape VCV  ·  "usan" · 4 letters · shape VCVC

Known mistypes of this pair

  • usansuan · uasn · usann · usna · ussan

Frequently Asked Questions

Can "usa" and "usan" be used interchangeably?
No. They are said differently ([ˈusa] versus [ˈusãn]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "usa" or "usan"?
"usa" is the more common of the two: it sits at frequency rank #1,074 in our Spanish list, against #2,098 for "usan". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "usa" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "usan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #318,892 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "usa" and "usan" also get mixed up with nearby pairs, the highest-scored neighbour is "urea vs usa". 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 #318,892 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