affectvsaffecterWhat's the difference?

Quick tell: affect is a noun, affecter is a verb, so they fill different roles in a sentence.

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 spellings diverge

Shared letters are muted; the letters that actually set affect and affecter apart are highlighted. They share 6 letters in sequence, which is exactly why the eye skips the difference.

6 ch
affect
8 ch
affecter

Spelling & Dictionary Insight

affect and affecter form a confusable pair in the French index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 extra letter(s) - “affect” sits inside “affecter” - close enough that the eye skips over the difference, far enough that meaning fully diverges. 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.

Frequency comparison

affect#37,638
affecter#10,111

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "affect" and "affecter" be used interchangeably?
No, "affect" and "affecter" have distinct meanings and cannot be swapped without changing the meaning of a sentence. Understanding the specific definition and context for each word is essential for correct usage.

Remembering affect vs affecter

The fastest way to pick the right one every time.

  • Check the role first: if you need a noun, it's “affect”; for a verb, it's “affecter”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “affect” entry
  • Browse more pairs most likely to be confused. Most confusable

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list