pumpsvspusTell them apart

Which to use

“pumps” and “pus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#9,235
“pumps” frequency rank
#28,336
“pus” frequency rank
37571
confusion score

Side-by-Side Comparison

Feature pumps pus
Definition plural of pump A whitish-yellow or yellow substance composed primarily of dead white blood cells and dead pyogenic bacteria, normally found in regions of bacterial infection.

Where the eye mixes pumps and pus

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
pumps
3 ch
pus

Visual trap between pumps and pus

A purely visual mix-up. pumps (/pʌmps/) and pus (/pʌs/) 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 2 letter(s) in length. Our composite confusion score for this pair is 37571, derived from the frequency rank of both members and their visual similarity.

pumps is recorded at frequency rank #9,235, classified as anoun, pronounced /pʌmps/. pus is at rank #28,336, tagged as anoun, pronounced /pʌs/.

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 37571, this pair ranks #293,416 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pumps vs pus

Shared letters: psu. Private to "pumps": m. Private to "pus": -.

"pumps" · 5 letters · shape CVCCC  ·  "pus" · 3 letters · shape CVC

Known mistypes of this pair

  • pumpspmups · ppumps · pummps · pumpps · pumpss · pumsp · pupms · upmps

Frequently Asked Questions

Can "pumps" and "pus" be used interchangeably?
No. They are said differently (/pʌmps/ versus /pʌs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "pumps" or "pus" show up more?
"pumps" is the more common of the two: it sits at frequency rank #9,235 in our English list, against #28,336 for "pus". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "pumps" and "pus" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "pumps" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "pus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #293,416 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "pumps" and "pus" also get mixed up with nearby pairs, the highest-scored neighbour is "PPA vs pus". 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 #293,416 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list