infectionvsinfractionWhat's the difference?

Which to use

“infection” and “infraction” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#6,204
“infection” frequency rank
#7,073
“infraction” frequency rank
13277
confusion score

Side-by-Side Comparison

Feature infection infraction
Definition Décomposition organique produite par des germes infectieux. Transgression, contravention, violation d’une loi, d’un ordre, d’un engagement, etc.

Where the eye mixes infection and infraction

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. infection runs 9 letters (VCCVCCVVC) against infraction's 10 (VCCCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
infection
10 ch
infraction

Why the eye confuses infection with infraction

A purely visual mix-up. infection (\ɛ̃.fɛk.sjɔ̃\) and infraction (\ɛ̃.fʁak.sjɔ̃\) 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 13277, derived from the frequency rank of both members and their visual similarity.

infection is recorded at frequency rank #6,204, classified as anoun, pronounced \ɛ̃.fɛk.sjɔ̃\. infraction is at rank #7,073, tagged as anoun, pronounced \ɛ̃.fʁak.sjɔ̃\.

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 13277, this pair ranks #401,687 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of infection vs infraction

Shared letters: cfinot. Private to "infection": e. Private to "infraction": ar.

"infection" · 9 letters · shape VCCVCCVVC  ·  "infraction" · 10 letters · shape VCCCVCCVVC

Known mistypes of this pair

  • infection ← ifnection · inefction · infcetion · infecction · infeciton · infectino · infectionn · infectoin
  • infraction ← ifnraction · infarction · inffraction · infracction · infraciton · infractino · infractionn · infractoin

Frequently Asked Questions

Is swapping "infection" for "infraction" ever safe?
No. They are said differently (\ɛ̃.fɛk.sjɔ̃\ versus \ɛ̃.fʁak.sjɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "infection" or "infraction" show up more?
"infection" is the more common of the two: it sits at frequency rank #6,204 in our French list, against #7,073 for "infraction". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "infection" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "infraction" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #401,687 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "infection" and "infraction" also get mixed up with nearby pairs, the highest-scored neighbour is "inception vs infection". 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 #401,687 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