Which to use
“pump” and “pumps” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,480
- “pump” frequency rank
- #9,235
- “pumps” frequency rank
- 13715
- confusion score
Side-by-Side Comparison
| Feature | pump | pumps |
|---|---|---|
| Definition | A device for moving or compressing a liquid or gas. | plural of pump |
Where the eye mixes pump and pumps
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Why the eye confuses pump with pumps
A purely visual mix-up. pump (/pʌmp/) and pumps (/pʌmps/) 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 extra letter(s) - “pump” sits inside “pumps”. Our composite confusion score for this pair is 13715, derived from the frequency rank of both members and their visual similarity.
pump is recorded at frequency rank #4,480, classified as anoun, pronounced /pʌmp/. pumps is at rank #9,235, tagged as anoun, pronounced /pʌmps/.
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 13715, this pair ranks #474,217 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of pump vs pumps
Shared letters: mpu. Private to "pump": -. Private to "pumps": s.
"pump" · 4 letters · shape CVCC · "pumps" · 5 letters · shape CVCCC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "pump" for "pumps" ever safe?
In ordinary English text, does "pump" or "pumps" 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 "pump" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "pumps" - compare definitions side by side with the headword page. Word entry
- This pair ranks #474,217 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "pump" and "pumps" also get mixed up with nearby pairs, the highest-scored neighbour is "poops vs pumps". 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 #474,217 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.