Which to use
“sig” is a contraction and “sin” is a preposition - they look or sound alike but fill different roles in a sentence.
- #22,189
- “sig” frequency rank
- #41
- “sin” frequency rank
- 22230
- confusion score
Side-by-Side Comparison
| Feature | sig | sin |
|---|---|---|
| Definition | Contracción de signature (firma). | Indica la ausencia, carencia o falta de algo. |
Where the eye mixes sig and sin
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses sig with sin
These two trip readers on the page rather than in the ear: sig is /sɪɡ/ while sin is [sĩn]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - g in “sig” becomes n in “sin”, and the parts of speech differ too (contraction vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 22230, derived from the frequency rank of both members and their visual similarity.
sig is recorded at frequency rank #22,189, classified as acontraction, pronounced /sɪɡ/. sin is at rank #41, tagged as aprep, pronounced [sĩn].
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 22230, this pair ranks #251,312 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sig vs sin
Shared letters: is. Private to "sig": g. Private to "sin": n.
"sig" · 3 letters · shape CVC · "sin" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "sig" for "sin" ever safe?
Which is more common, "sig" or "sin"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sig" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sin" - compare definitions side by side with the headword page. Word entry
- This pair ranks #251,312 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "sig" and "sin" also get mixed up with nearby pairs, the highest-scored neighbour is "sig vs sila". Nearby pair
Confusion rank #251,312 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.