Which to use
“stem” is a noun and “sth” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #4,336
- “stem” frequency rank
- #40,035
- “sth” frequency rank
- 44371
- confusion score
Side-by-Side Comparison
| Feature | stem | sth |
|---|---|---|
| Definition | The stock of a family; a race or generation of progenitors. | Abbreviation of something. |
Letter map: stem vs sth
Shared letters muted; letters that set stem and sth apart highlighted. Shared run: 2.
Part-of-speech tell for stem / sth
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: stem is anoun and sthapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 44371, derived from the frequency rank of both members and their visual similarity.
stem is recorded at frequency rank #4,336, classified as anoun, pronounced /stɛm/. 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 44371, this pair ranks #231,192 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of stem vs sth
Shared letters: st. Private to "stem": em. Private to "sth": h.
"stem" · 4 letters · shape CCVC · "sth" · 3 letters · shape CCC
Known mistypes of this pair
- stem ← setm · sstem · stemm · stme · sttem · tsem
Frequently Asked Questions
Do "stem" and "sth" mean the same thing in a sentence?
In ordinary English text, does "stem" or "sth" show up more?
After this comparison
Pair "stem" vs "sth" is on the table, pick a follow-up below.
- Full dictionary entry for "stem" 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 #231,192 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "stem" and "sth" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sth". 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 #231,192 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.