définisvsdéfisWhich spelling fits?

Quick tell: définis is a adjective, défis is a noun, so they fill different roles in a sentence.

Which to use

“définis” is an adjective and “défis” is a noun - they look or sound alike but fill different roles in a sentence.

#10,143
“définis” frequency rank
#5,971
“défis” frequency rank
16114
confusion score

Side-by-Side Comparison

Feature définis défis
Definition Masculin pluriel de défini. Pluriel de défi.

Where the eye mixes définis and défis

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

7 ch
définis
5 ch
défis

Visual trap between définis and défis

These two trip readers on the page rather than in the ear: définis is \de.fi.ni\ while défis is \de.fi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 16114, derived from the frequency rank of both members and their visual similarity.

définis is recorded at frequency rank #10,143, classified as anadj, pronounced \de.fi.ni\. défis is at rank #5,971, tagged as anoun, pronounced \de.fi\.

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 16114, this pair ranks #389,326 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of définis vs défis

Shared letters: dfisé. Private to "définis": n. Private to "défis": -.

"définis" · 7 letters · shape CVCVCVC  ·  "défis" · 5 letters · shape CVCVC

Frequently Asked Questions

Is swapping "définis" for "défis" ever safe?
No - they are not even the same part of speech. "définis" is an adjective and "défis" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "définis" vs "défis" - which ranks higher?
"défis" is the more common of the two: it sits at frequency rank #5,971 in our French list, against #10,143 for "définis". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "définis" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "défis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #389,326 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "définis" and "défis" also get mixed up with nearby pairs, the highest-scored neighbour is "définis vs devins". Nearby pair

Confusion rank #389,326 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