réfectionvsréfractionTell them apart

Which to use

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

#19,145
“réfection” frequency rank
#39,522
“réfraction” frequency rank
58667
confusion score

Side-by-Side Comparison

Feature réfection réfraction
Definition Réparation, rétablissement d’un bâtiment. Déviation que subit un rayon lumineux, lorsqu’il passe d'un milieu dans un milieu de densité différente.

Where the eye mixes réfection and réfraction

Muted = shared; highlighted = the visual trap. They share 8 letters in sequence. réfection runs 9 letters (CVCVCCVVC) against réfraction's 10 (CVCCVCCVVC) - the length gap alone is often enough to separate them once you know to check it.

9 ch
réfection
10 ch
réfraction

Visual trap between réfection and réfraction

A purely visual mix-up. réfection (\ʁe.fɛk.sjɔ̃\) and réfraction (\ʁe.fʁak.sjɔ̃\) 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 58667, derived from the frequency rank of both members and their visual similarity.

réfection is recorded at frequency rank #19,145, classified as anoun, pronounced \ʁe.fɛk.sjɔ̃\. réfraction is at rank #39,522, tagged as anoun, pronounced \ʁe.fʁak.sjɔ̃\.

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 58667, this pair ranks #107,662 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of réfection vs réfraction

Shared letters: cfinorté. Private to "réfection": e. Private to "réfraction": a.

"réfection" · 9 letters · shape CVCVCCVVC  ·  "réfraction" · 10 letters · shape CVCCVCCVVC

Frequently Asked Questions

Can "réfection" and "réfraction" be used interchangeably?
No. They are said differently (\ʁe.fɛk.sjɔ̃\ versus \ʁe.fʁak.sjɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "réfection" or "réfraction"?
"réfection" is the more common of the two: it sits at frequency rank #19,145 in our French list, against #39,522 for "réfraction". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "réfection" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "réfraction" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #107,662 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "réfection" and "réfraction" also get mixed up with nearby pairs, the highest-scored neighbour is "réfraction vs rétroaction". Nearby pair

Confusion rank #107,662 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