sesvssuaWhich spelling fits?

Quick tell: ses is a article, sua is a pronoun, so they fill different roles in a sentence.

Which to use

“ses” is an article and “sua” is a pronoun - they look or sound alike but fill different roles in a sentence.

#27,012
“ses” frequency rank
#44,466
“sua” frequency rank
71478
confusion score

Side-by-Side Comparison

Feature ses sua
Definition Las Forma del nominativo femenino singular de suus.

Where the eye mixes ses and sua

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ses (CVC) and sua (CVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
ses
3 ch
sua

Why the eye confuses ses with sua

These two trip readers on the page rather than in the ear: ses is [ˈses] while sua is /ˈsʷa/. 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 (article vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 71478, derived from the frequency rank of both members and their visual similarity.

ses is recorded at frequency rank #27,012, classified as anarticle, pronounced [ˈses]. sua is at rank #44,466, tagged as apron, pronounced /ˈsʷa/.

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 71478, this pair ranks #27,416 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of ses vs sua

Shared letters: s. Private to "ses": e. Private to "sua": au.

"ses" · 3 letters · shape CVC  ·  "sua" · 3 letters · shape CVV

Frequently Asked Questions

Do "ses" and "sua" mean the same thing in a sentence?
No - they are not even the same part of speech. "ses" is an article and "sua" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "ses" or "sua" show up more?
"ses" is the more common of the two: it sits at frequency rank #27,012 in our Spanish list, against #44,466 for "sua". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "ses" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sua" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #27,416 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ses" and "sua" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs sua". Nearby pair

Confusion rank #27,416 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