Which to use
“sub” and “sums” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,236
- “sub” frequency rank
- #8,361
- “sums” frequency rank
- 10597
- confusion score
Side-by-Side Comparison
| Feature | sub | sums |
|---|---|---|
| Definition | Abbreviation of submarine. | plural of sum |
Where the eye mixes sub and sums
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses sub with sums
A purely visual mix-up. sub (/sʌb/) and sums (/sʌmz/) 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 10597, derived from the frequency rank of both members and their visual similarity.
sub is recorded at frequency rank #2,236, classified as anoun, pronounced /sʌb/. sums is at rank #8,361, tagged as anoun, pronounced /sʌmz/.
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 10597, this pair ranks #491,519 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sub vs sums
Shared letters: su. Private to "sub": b. Private to "sums": m.
"sub" · 3 letters · shape CVC · "sums" · 4 letters · shape CVCC
Known mistypes of this pair
- sums ← smus · ssums · summs · sumss · susm · usms
Frequently Asked Questions
Do "sub" and "sums" mean the same thing in a sentence?
In ordinary English text, does "sub" or "sums" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sub" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sums" - compare definitions side by side with the headword page. Word entry
- This pair ranks #491,519 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sub" and "sums" also get mixed up with nearby pairs, the highest-scored neighbour is "sums vs sura". 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 #491,519 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.