fonctionnevsfonctionnelsWhich spelling fits?

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

Which to use

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

#2,225
“fonctionne” frequency rank
#20,145
“fonctionnels” frequency rank
22370
confusion score

Side-by-Side Comparison

Feature fonctionne fonctionnels
Definition Première personne du singulier du présent de l’indicatif du verbe fonctionner. Masculin pluriel de fonctionnel.

Where the eye mixes fonctionne and fonctionnels

Muted = shared; highlighted = the visual trap. They share 10 letters in sequence. fonctionne runs 10 letters (CVCCCVVCCV) against fonctionnels's 12 (CVCCCVVCCVCC) - the length gap alone is often enough to separate them once you know to check it.

10 ch
fonctionne
12 ch
fonctionnels

Look-alike desk: fonctionne vs fonctionnels

These two trip readers on the page rather than in the ear: fonctionne is \fɔ̃k.sjɔn\ while fonctionnels is \fɔ̃k.sjɔ.nɛl\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “fonctionne” sits inside “fonctionnels”, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 22370, derived from the frequency rank of both members and their visual similarity.

fonctionne is recorded at frequency rank #2,225, classified as averb, pronounced \fɔ̃k.sjɔn\. fonctionnels is at rank #20,145, tagged as anadj, pronounced \fɔ̃k.sjɔ.nɛl\.

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 22370, this pair ranks #358,363 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fonctionne vs fonctionnels

Shared letters: cefinot. Private to "fonctionne": -. Private to "fonctionnels": ls.

"fonctionne" · 10 letters · shape CVCCCVVCCV  ·  "fonctionnels" · 12 letters · shape CVCCCVVCCVCC

Known mistypes of this pair

  • fonctionne ← ffonctionne · fnoctionne · focntionne · foncctionne · foncitonne · fonctinone · fonctione · fonctionen
  • fonctionnels ← ffonctionnels · fnoctionnels · focntionnels · foncctionnels · foncitonnels · fonctinonels · fonctionels · fonctionenls

Frequently Asked Questions

Do "fonctionne" and "fonctionnels" mean the same thing in a sentence?
No - they are not even the same part of speech. "fonctionne" is a verb and "fonctionnels" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "fonctionne" vs "fonctionnels" - which ranks higher?
"fonctionne" is the more common of the two: it sits at frequency rank #2,225 in our French list, against #20,145 for "fonctionnels". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "fonctionne" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fonctionnels" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #358,363 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fonctionne" and "fonctionnels" also get mixed up with nearby pairs, the highest-scored neighbour is "fonctionnelles vs fonctionnels". 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 #358,363 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