Which to use
“sei” is a num and “sic” is an adverb - they look or sound alike but fill different roles in a sentence.
- #48,072
- “sei” frequency rank
- #11,861
- “sic” frequency rank
- 59933
- confusion score
Side-by-Side Comparison
| Feature | sei | sic |
|---|---|---|
| Definition | Seis. | Úsase en textos escritos para señalar que una transcripción o cita es textual, y que por lo tanto las imprecisiones o errores se deben al autor y no a quien transcribe |
Where the eye mixes sei and sic
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between sei and sic
These two trip readers on the page rather than in the ear: sei is /s̺ej/ while sic is [ˈsik]. 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 adverb), which is usually the fastest check. Our composite confusion score for this pair is 59933, 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/. sic is at rank #11,861, tagged as anadv, pronounced [ˈsik].
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 59933, this pair ranks #60,780 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of sei vs sic
Shared letters: is. Private to "sei": e. Private to "sic": c.
"sei" · 3 letters · shape CVV · "sic" · 3 letters · shape CVC
Frequently Asked Questions
Can "sei" and "sic" be used interchangeably?
Frequency check: "sei" vs "sic" - which ranks higher?
What to do next
Eye-level mix-up between "sei" and "sic" 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 "sic" - compare definitions side by side with the headword page. Word entry
- This pair ranks #60,780 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sei" and "sic" also get mixed up with nearby pairs, the highest-scored neighbour is "sei vs stem". Nearby pair
Confusion rank #60,780 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.