filsvsfinesTell them apart

Which to use

“fils” and “fines” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#337
“fils” frequency rank
#7,694
“fines” frequency rank
8031
confusion score

Side-by-Side Comparison

Feature fils fines
Definition Tout être humain de genre masculin considéré par rapport à son père et à sa mère, ou à un des deux seulement. Granulat composé d’éléments de très petites dimensions utilisé soit comme charge de remplissage pour augmenter la compacité notamment d'un béton, d'un sol, soit comme constituant de certains liants hydrauliques.

Where the eye mixes fils and fines

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. fils runs 4 letters (CVCC) against fines's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
fils
5 ch
fines

Visual trap between fils and fines

A purely visual mix-up. fils (\fis\) and fines (\fin\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 8031, derived from the frequency rank of both members and their visual similarity.

fils is recorded at frequency rank #337, classified as anoun, pronounced \fis\. fines is at rank #7,694, tagged as anoun, pronounced \fin\.

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 8031, this pair ranks #421,346 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fils vs fines

Shared letters: fis. Private to "fils": l. Private to "fines": en.

"fils" · 4 letters · shape CVCC  ·  "fines" · 5 letters · shape CVCVC

Known mistypes of this pair

  • filsffils · fills · filss · fisl · flis · ifls
  • finesffines · fiens · finess · finnes · finse · fnies · ifnes

Frequently Asked Questions

Can "fils" and "fines" be used interchangeably?
No. They are said differently (\fis\ versus \fin\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "fils" vs "fines" - which ranks higher?
"fils" is the more common of the two: it sits at frequency rank #337 in our French list, against #7,694 for "fines". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fils" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fines" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #421,346 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "fils" and "fines" also get mixed up with nearby pairs, the highest-scored neighbour is "fines vs Finger". 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 #421,346 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