Which to use
“shim” and “sum” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #40,020
- “shim” frequency rank
- #4,050
- “sum” frequency rank
- 44070
- confusion score
Side-by-Side Comparison
| Feature | shim | sum |
|---|---|---|
| Definition | A wedge. | A quantity obtained by addition or aggregation. |
Where the eye mixes shim and sum
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: shim vs sum
A purely visual mix-up. shim (/ʃɪm/) 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 44070, derived from the frequency rank of both members and their visual similarity.
shim is recorded at frequency rank #40,020, classified as anoun, pronounced /ʃɪm/. sum is at rank #4,050, 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 44070, this pair ranks #233,990 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of shim vs sum
Shared letters: ms. Private to "shim": hi. Private to "sum": u.
"shim" · 4 letters · shape CCVC · "sum" · 3 letters · shape CVC
Known mistypes of this pair
- shim ← hsim · shhim · shimm · shmi · sihm · sshim
Frequently Asked Questions
Do "shim" and "sum" mean the same thing in a sentence?
Frequency check: "shim" vs "sum" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "shim" 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 #233,990 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "shim" and "sum" also get mixed up with nearby pairs, the highest-scored neighbour is "shim 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 #233,990 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.