Which to use
“stem” and “sum” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #49,952
- “stem” frequency rank
- #27,789
- “sum” frequency rank
- 77741
- confusion score
Side-by-Side Comparison
| Feature | stem | sum |
|---|---|---|
| Definition | Tallo. | Suma, adición. |
Where the eye mixes stem and sum
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses stem with sum
A purely visual mix-up. stem (/stɛm/) and sum ([sʌm]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 77741, derived from the frequency rank of both members and their visual similarity.
stem is recorded at frequency rank #49,952, classified as anoun, pronounced /stɛm/. sum is at rank #27,789, tagged as anoun, pronounced [sʌm].
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 77741, this pair ranks #15,515 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of stem vs sum
Shared letters: ms. Private to "stem": et. Private to "sum": u.
"stem" · 4 letters · shape CCVC · "sum" · 3 letters · shape CVC
Known mistypes of this pair
- stem ← setm · sstem · stemm · stme · sttem · tsem
Frequently Asked Questions
Is swapping "stem" for "sum" ever safe?
In ordinary Spanish text, does "stem" or "sum" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "stem" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sum" - compare definitions side by side with the headword page. Word entry
- This pair ranks #15,515 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "stem" and "sum" also get mixed up with nearby pairs, the highest-scored neighbour is "sei vs stem". 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 #15,515 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.