Which to use
“sich” is a noun and “sth” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #42,895
- “sich” frequency rank
- #40,035
- “sth” frequency rank
- 82930
- confusion score
Side-by-Side Comparison
| Feature | sich | sth |
|---|---|---|
| Definition | An administrative and military centre for the Zaporozhian and Danube Cossacks. | Abbreviation of something. |
Letter map: sich vs sth
Shared letters muted; letters that set sich and sth apart highlighted. Shared run: 2. sich runs 4 letters (CVCC) against sth's 3 (CCC) - the length gap alone is often enough to separate them once you know to check it.
Part-of-speech tell for sich / sth
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sich is anoun and sthapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 82930, derived from the frequency rank of both members and their visual similarity.
sich is recorded at frequency rank #42,895, classified as anoun, pronounced /siːt͡ʃ/. sth is at rank #40,035, tagged as apron.
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 82930, this pair ranks #14,806 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of sich vs sth
Shared letters: hs. Private to "sich": ci. Private to "sth": t.
"sich" · 4 letters · shape CVCC · "sth" · 3 letters · shape CCC
Known mistypes of this pair
- sich ← isch · scih · sicch · sichh · sihc · ssich
Frequently Asked Questions
Is swapping "sich" for "sth" ever safe?
Which is more common, "sich" or "sth"?
Useful next steps
You've compared "sich" and "sth". Here's where to go from here.
- Full dictionary entry for "sich" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sth" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,806 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sich" and "sth" also get mixed up with nearby pairs, the highest-scored neighbour is "sich vs Sif". 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 #14,806 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.