défientvsdémentTell them apart

Quick tell: défient is a verb, dément is an adjective, so they fill different roles in a sentence.

Which to use

“défient” is a verb and “dément” is an adjective - they look or sound alike but fill different roles in a sentence.

#39,267
“défient” frequency rank
#13,364
“dément” frequency rank
52631
confusion score

Side-by-Side Comparison

Feature défient dément
Definition Troisième personne du pluriel de l’indicatif présent de défier. Qui est dans l’état de démence.

Where the eye mixes défient and dément

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. défient runs 7 letters (CVCVVCC) against dément's 6 (CVCVCC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
défient
6 ch
dément

Why the eye confuses défient with dément

These two trip readers on the page rather than in the ear: défient is \de.fi\ while dément is \de.mɑ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 52631, derived from the frequency rank of both members and their visual similarity.

défient is recorded at frequency rank #39,267, classified as averb, pronounced \de.fi\. dément is at rank #13,364, tagged as anadj, pronounced \de.mɑ̃\.

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 52631, this pair ranks #146,345 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of défient vs dément

Shared letters: denté. Private to "défient": fi. Private to "dément": m.

"défient" · 7 letters · shape CVCVVCC  ·  "dément" · 6 letters · shape CVCVCC

Frequently Asked Questions

Do "défient" and "dément" mean the same thing in a sentence?
No - they are not even the same part of speech. "défient" is a verb and "dément" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "défient" or "dément"?
"dément" is the more common of the two: it sits at frequency rank #13,364 in our French list, against #39,267 for "défient". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "défient" and "dément" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "défient" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "dément" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #146,345 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "défient" and "dément" also get mixed up with nearby pairs, the highest-scored neighbour is "défient vs dérivent". Nearby pair

Confusion rank #146,345 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