ppmvspxTell them apart

Quick tell: ppm is a noun, px is a symbol, so they fill different roles in a sentence.

Which to use

“ppm” is a noun and “px” is a symbol - they look or sound alike but fill different roles in a sentence.

#38,483
“ppm” frequency rank
#36,118
“px” frequency rank
74601
confusion score

Side-by-Side Comparison

Feature ppm px
Definition Partie par million. Symbole du pixel.

Letter map: ppm vs px

Shared letters muted; letters that set ppm and px apart highlighted. Shared run: 1.

3 ch
ppm
2 ch
px

Grammar separator: ppm vs px

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ppm is anoun and pxasymbol. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 74601, derived from the frequency rank of both members and their visual similarity.

ppm is recorded at frequency rank #38,483, classified as anoun, pronounced \pe.pe.ɛm\. px is at rank #36,118, tagged as asymbol.

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 74601, this pair ranks #36,633 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of ppm vs px

Shared letters: p. Private to "ppm": m. Private to "px": x.

"ppm" · 3 letters · shape CCC  ·  "px" · 2 letters · shape CC

Frequently Asked Questions

Is swapping "ppm" for "px" ever safe?
No - they are not even the same part of speech. "ppm" is a noun and "px" a symbol, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ppm" or "px"?
"px" is the more common of the two: it sits at frequency rank #36,118 in our French list, against #38,483 for "ppm". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "ppm" and "px". Here's where to go from here.

  • Full dictionary entry for "ppm" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "px" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,633 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ppm" and "px" also get mixed up with nearby pairs, the highest-scored neighbour is "pio vs ppm". Nearby pair

Confusion rank #36,633 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list