Which to use
“since” is a preposition and “sino” is a conjunction - they look or sound alike but fill different roles in a sentence.
- #31,121
- “since” frequency rank
- #210
- “sino” frequency rank
- 31331
- confusion score
Side-by-Side Comparison
| Feature | since | sino |
|---|---|---|
| Definition | Desde. | Si aparece en preguntas o precedido de negación expletiva, indica que una única persona cumple con lo expresado. |
Where the eye mixes since and sino
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Why the eye confuses since with sino
These two trip readers on the page rather than in the ear: since is /sɪns/ while sino is [ˈsino]. 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 (preposition vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 31331, derived from the frequency rank of both members and their visual similarity.
since is recorded at frequency rank #31,121, classified as aprep, pronounced /sɪns/. sino is at rank #210, tagged as aconj, pronounced [ˈsino].
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 31331, this pair ranks #207,581 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of since vs sino
Shared letters: ins. Private to "since": ce. Private to "sino": o.
"since" · 5 letters · shape CVCCV · "sino" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "since" for "sino" ever safe?
Which is more common, "since" or "sino"?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "since" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sino" - compare definitions side by side with the headword page. Word entry
- This pair ranks #207,581 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "since" and "sino" also get mixed up with nearby pairs, the highest-scored neighbour is "sica vs since". 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 #207,581 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.