PuffvspusWhich spelling fits?

Which to use

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

#35,709
“Puff” frequency rank
#26,976
“pus” frequency rank
62685
confusion score

Side-by-Side Comparison

Feature Puff pus
Definition Empujón, golpe. Sustancia blanquecina o amarillenta producida por el cuerpo durante procesos infecciosos. Está compuesto, principalmente, por microorganismos muertos, glóbulos blancos muertos, y restos de tejido dañado.

Where the eye mixes Puff and pus

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
Puff
3 ch
pus

Why the eye confuses Puff with pus

A purely visual mix-up. Puff ([pʊf]) and pus ([ˈpus]) 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 62685, derived from the frequency rank of both members and their visual similarity.

Puff is recorded at frequency rank #35,709, classified as anoun, pronounced [pʊf]. pus is at rank #26,976, tagged as anoun, pronounced [ˈpus].

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 62685, this pair ranks #51,185 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of Puff vs pus

Shared letters: pu. Private to "Puff": f. Private to "pus": s.

"Puff" · 4 letters · shape CVCC  ·  "pus" · 3 letters · shape CVC

Known mistypes of this pair

  • Puffpfuf · ppuff · upff

Frequently Asked Questions

Is swapping "Puff" for "pus" ever safe?
No. They are said differently ([pʊf] versus [ˈpus]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "Puff" vs "pus" - which ranks higher?
"pus" is the more common of the two: it sits at frequency rank #26,976 in our Spanish list, against #35,709 for "Puff". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "Puff" 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 #51,185 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "Puff" and "pus" also get mixed up with nearby pairs, the highest-scored neighbour is "púa vs Puff". 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 #51,185 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list