Which to use
“sign” is a noun and “sis” is a num - they look or sound alike but fill different roles in a sentence.
- #22,142
- “sign” frequency rank
- #37,202
- “sis” frequency rank
- 59344
- confusion score
Side-by-Side Comparison
| Feature | sign | sis |
|---|---|---|
| Definition | Zeichen, Geste | sechs (6) |
Where the eye mixes sign and sis
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between sign and sis
These two trip readers on the page rather than in the ear: sign is [saɪn] while sis is [sis]. 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 (noun vs num), which is usually the fastest check. Our composite confusion score for this pair is 59344, derived from the frequency rank of both members and their visual similarity.
sign is recorded at frequency rank #22,142, classified as anoun, pronounced [saɪn]. sis is at rank #37,202, tagged as anum, pronounced [sis].
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 59344, this pair ranks #828,002 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sign vs sis
Shared letters: is. Private to "sign": gn. Private to "sis": -.
"sign" · 4 letters · shape CVCC · "sis" · 3 letters · shape CVC
Known mistypes of this pair
- sign ← isgn · sgin · siggn · signn · ssign
Frequently Asked Questions
Is swapping "sign" for "sis" ever safe?
Frequency check: "sign" vs "sis" - which ranks higher?
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 "sign" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sis" - compare definitions side by side with the headword page. Word entry
- This pair ranks #828,002 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
- "sign" and "sis" also get mixed up with nearby pairs, the highest-scored neighbour is "seg vs sis". 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 #828,002 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.