raisonvsrançonWhat's the difference?

Which to use

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

#259
“raison” frequency rank
#14,545
“rançon” frequency rank
14804
confusion score

Side-by-Side Comparison

Feature raison rançon
Definition Faculté intellectuelle par laquelle l’homme connaît, juge et se conduit ; entendement. Prix exigé pour la délivrance d’un captif ou d’un prisonnier de guerre, ou pour relâcher un vaisseau de guerre, ou débloquer un système informatique piraté, etc.

Where the eye mixes raison and rançon

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
raison
6 ch
rançon

Look-alike desk: raison vs rançon

A purely visual mix-up. raison (\ʁɛ.zɔ̃\) and rançon (\ʁɑ̃.sɔ̃\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 14804, derived from the frequency rank of both members and their visual similarity.

raison is recorded at frequency rank #259, classified as anoun, pronounced \ʁɛ.zɔ̃\. rançon is at rank #14,545, tagged as anoun, pronounced \ʁɑ̃.sɔ̃\.

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 14804, this pair ranks #395,154 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of raison vs rançon

Shared letters: anor. Private to "raison": is. Private to "rançon": ç.

"raison" · 6 letters · shape CVVCVC  ·  "rançon" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • raisonarison · raiosn · raisno · raisonn · raisson · rasion · riason · rraison

Frequently Asked Questions

Do "raison" and "rançon" mean the same thing in a sentence?
No. They are said differently (\ʁɛ.zɔ̃\ versus \ʁɑ̃.sɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "raison" vs "rançon" - which ranks higher?
"raison" is the more common of the two: it sits at frequency rank #259 in our French list, against #14,545 for "rançon". 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 "raison" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rançon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #395,154 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "raison" and "rançon" also get mixed up with nearby pairs, the highest-scored neighbour is "radon vs rançon". 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 #395,154 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