silvssisWhich spelling fits?

Quick tell: sil is a noun, sis is a num, so they fill different roles in a sentence.

Which to use

“sil” is a noun and “sis” is a num - they look or sound alike but fill different roles in a sentence.

#48,487
“sil” frequency rank
#37,202
“sis” frequency rank
85689
confusion score

Side-by-Side Comparison

Feature sil sis
Definition Küchengerät mit vielen Löschern; Sieb sechs (6)

Letter map: sil vs sis

Shared letters muted; letters that set sil and sis apart highlighted. Shared run: 2. sil and sis follow the identical consonant-vowel pattern (CVC). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
sil
3 ch
sis

Role in the sentence - sil and sis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sil is anoun and sisanum. On the page they differ by a single letter - l in “sil” becomes s in “sis”. Our composite confusion score for this pair is 85689, derived from the frequency rank of both members and their visual similarity.

sil is recorded at frequency rank #48,487, classified as anoun, pronounced […]. 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 85689, this pair ranks #104,516 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of sil vs sis

Shared letters: is. Private to "sil": l. Private to "sis": -.

"sil" · 3 letters · shape CVC  ·  "sis" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "sil" for "sis" ever safe?
No - they are not even the same part of speech. "sil" is a noun and "sis" a num, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "sil" or "sis" show up more?
"sis" is the more common of the two: it sits at frequency rank #37,202 in our German list, against #48,487 for "sil". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "sil" and "sis".

  • Full dictionary entry for "sil" 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 #104,516 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "sil" and "sis" also get mixed up with nearby pairs, the highest-scored neighbour is "puzzles vs sil". Nearby pair

Confusion rank #104,516 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list