Which to use
“infection” and “infraction” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,093
- “infection” frequency rank
- #32,865
- “infraction” frequency rank
- 36958
- confusion score
Side-by-Side Comparison
| Feature | infection | infraction |
|---|---|---|
| Definition | The act or process of infecting. | A minor offence, petty crime. |
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.
Why the eye confuses infection with infraction
A purely visual mix-up. infection (/ɪnˈfɛkʃən/) and infraction (/ɪnˈfɹakʃən/) 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 36958, derived from the frequency rank of both members and their visual similarity.
infection is recorded at frequency rank #4,093, classified as anoun, pronounced /ɪnˈfɛkʃən/. infraction is at rank #32,865, tagged as anoun, pronounced /ɪnˈfɹakʃən/.
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 36958, this pair ranks #298,636 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
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 · infecsion · infectino · infectionn
- infraction ← ifnraction · inffraction · infracction · infraciton · infracsion · infractino · infractionn · infractoin
Frequently Asked Questions
Is swapping "infection" for "infraction" ever safe?
In ordinary English text, does "infection" or "infraction" show up more?
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 #298,636 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "infection" and "infraction" also get mixed up with nearby pairs, the highest-scored neighbour is "infarction vs infraction". 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 #298,636 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.