Which to use
“sos” is a verb and “su” is an adjective - they look or sound alike but fill different roles in a sentence.
- #1,331
- “sos” frequency rank
- #20
- “su” frequency rank
- 1351
- confusion score
Side-by-Side Comparison
| Feature | sos | su |
|---|---|---|
| Definition | Segunda persona del singular (vos) del presente de indicativo de ser. | Adjetivo posesivo de la tercera persona; de él, de ella, de ellos, de ellas. |
Where the eye mixes sos and su
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses sos with su
These two trip readers on the page rather than in the ear: sos is [ˈsos] while su is [su]. 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 1351, derived from the frequency rank of both members and their visual similarity.
sos is recorded at frequency rank #1,331, classified as averb, pronounced [ˈsos]. su is at rank #20, tagged as anadj, pronounced [su].
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 1351, this pair ranks #322,205 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sos vs su
Shared letters: s. Private to "sos": o. Private to "su": u.
"sos" · 3 letters · shape CVC · "su" · 2 letters · shape CV
Frequently Asked Questions
Do "sos" and "su" mean the same thing in a sentence?
In ordinary Spanish text, does "sos" or "su" show up more?
What to do next
Eye-level mix-up between "sos" and "su" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sos" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "su" - compare definitions side by side with the headword page. Word entry
- This pair ranks #322,205 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sos" and "su" also get mixed up with nearby pairs, the highest-scored neighbour is "sos vs sous". Nearby pair
Confusion rank #322,205 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.