Which to use
“su” is an adjective and “suso” is an adverb - they look or sound alike but fill different roles in a sentence.
- #20
- “su” frequency rank
- #32,895
- “suso” frequency rank
- 32915
- confusion score
Side-by-Side Comparison
| Feature | su | suso |
|---|---|---|
| Definition | Adjetivo posesivo de la tercera persona; de él, de ella, de ellos, de ellas. | Término castellano en desuso sinónimo de arriba, muy utilizado antiguamente en términos geográficos para distinguir entre las tierras situadas en la parte alta (de suso) y las situada en la parte baja (de yuso o de ayuso). |
Where the eye mixes su and suso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between su and suso
These two trip readers on the page rather than in the ear: su is [su] while suso is [ˈsuso]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “su” sits inside “suso”, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 32915, derived from the frequency rank of both members and their visual similarity.
su is recorded at frequency rank #20, classified as anadj, pronounced [su]. suso is at rank #32,895, tagged as anadv, pronounced [ˈsuso].
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 32915, this pair ranks #199,534 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of su vs suso
Shared letters: su. Private to "su": -. Private to "suso": o.
"su" · 2 letters · shape CV · "suso" · 4 letters · shape CVCV
Known mistypes of this pair
- suso ← ssuo · ssuso · susso
Frequently Asked Questions
Is swapping "su" for "suso" ever safe?
In ordinary Spanish text, does "su" or "suso" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "su" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "suso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #199,534 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "su" and "suso" also get mixed up with nearby pairs, the highest-scored neighbour is "sous vs suso". 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 #199,534 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.