Which to use
“affect” is a noun and “affecter” is a verb - they look or sound alike but fill different roles in a sentence.
- #37,638
- “affect” frequency rank
- #10,111
- “affecter” frequency rank
- 47749
- confusion score
Side-by-Side Comparison
| Feature | affect | affecter |
|---|---|---|
| Definition | Disposition affective élémentaire : humeur, émotion, sentiment, motivation, passion. | Destiner et appliquer une chose ou une personne à un certain usage. |
Where the eye mixes affect and affecter
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Visual trap between affect and affecter
These two trip readers on the page rather than in the ear: affect is \a.fɛkt\ while affecter is \a.fɛk.te\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “affect” sits inside “affecter”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 47749, derived from the frequency rank of both members and their visual similarity.
affect is recorded at frequency rank #37,638, classified as anoun, pronounced \a.fɛkt\. affecter is at rank #10,111, tagged as averb, pronounced \a.fɛk.te\.
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 47749, this pair ranks #184,448 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of affect vs affecter
Shared letters: aceft. Private to "affect": -. Private to "affecter": r.
"affect" · 6 letters · shape VCCVCC · "affecter" · 8 letters · shape VCCVCCVC
Known mistypes of this pair
Frequently Asked Questions
Do "affect" and "affecter" mean the same thing in a sentence?
Frequency check: "affect" vs "affecter" - which ranks higher?
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 "affect" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "affecter" - compare definitions side by side with the headword page. Word entry
- This pair ranks #184,448 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "affect" and "affecter" also get mixed up with nearby pairs, the highest-scored neighbour is "affect vs affects". 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 #184,448 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.