Which to use
“sei” is a num and “sus” is an intj - they look or sound alike but fill different roles in a sentence.
- #48,072
- “sei” frequency rank
- #32
- “sus” frequency rank
- 48104
- confusion score
Side-by-Side Comparison
| Feature | sei | sus |
|---|---|---|
| Definition | Seis. | Se emplea para avivar, infundir ánimo e incitar a la acción rápida y con vigor. |
Where the eye mixes sei and sus
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between sei and sus
These two trip readers on the page rather than in the ear: sei is /s̺ej/ while sus is [sus]. 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 48104, derived from the frequency rank of both members and their visual similarity.
sei is recorded at frequency rank #48,072, classified as anum, pronounced /s̺ej/. sus is at rank #32, tagged as anintj, pronounced [sus].
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 48104, this pair ranks #116,307 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sei vs sus
Shared letters: s. Private to "sei": ei. Private to "sus": u.
"sei" · 3 letters · shape CVV · "sus" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "sei" for "sus" ever safe?
Which is more common, "sei" or "sus"?
After this comparison
Eye-level mix-up between "sei" and "sus" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sei" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sus" - compare definitions side by side with the headword page. Word entry
- This pair ranks #116,307 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sei" and "sus" also get mixed up with nearby pairs, the highest-scored neighbour is "sei vs stem". Nearby pair
Confusion rank #116,307 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.