Which to use
“sine” is a preposition and “sirve” is a verb - they look or sound alike but fill different roles in a sentence.
- #39,994
- “sine” frequency rank
- #1,361
- “sirve” frequency rank
- 41355
- confusion score
Side-by-Side Comparison
| Feature | sine | sirve |
|---|---|---|
| Definition | Sin. | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de servir. |
Where the eye mixes sine and sirve
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. sine runs 4 letters (CVCV) against sirve's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses sine with sirve
These two trip readers on the page rather than in the ear: sine is [ˈsɪ.nɛ] while sirve is [ˈsiɾβ̞e]. 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 verb), which is usually the fastest check. Our composite confusion score for this pair is 41355, derived from the frequency rank of both members and their visual similarity.
sine is recorded at frequency rank #39,994, classified as aprep, pronounced [ˈsɪ.nɛ]. sirve is at rank #1,361, tagged as averb, pronounced [ˈsiɾβ̞e].
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 41355, this pair ranks #154,102 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sine vs sirve
Shared letters: eis. Private to "sine": n. Private to "sirve": rv.
"sine" · 4 letters · shape CVCV · "sirve" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Do "sine" and "sirve" mean the same thing in a sentence?
Which is more common, "sine" or "sirve"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "sine" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sirve" - compare definitions side by side with the headword page. Word entry
- This pair ranks #154,102 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sine" and "sirve" also get mixed up with nearby pairs, the highest-scored neighbour is "sila vs sine". 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 #154,102 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.