ratiovsrationWhat's the difference?

Which to use

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

#8,607
“ratio” frequency rank
#19,645
“ration” frequency rank
28252
confusion score

Side-by-Side Comparison

Feature ratio ration
Definition Proportion entre deux valeurs de même nature. Portion journalière soit de pain, soit d’autres vivres, soit de fourrage, qui se distribue aux soldats ou aux marins.

Where the eye mixes ratio and ration

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

5 ch
ratio
6 ch
ration

Look-alike desk: ratio vs ration

A purely visual mix-up. ratio (\ʁa.sjo\) and ration (\ʁa.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 extra letter(s) - “ratio” sits inside “ration”. Our composite confusion score for this pair is 28252, derived from the frequency rank of both members and their visual similarity.

ratio is recorded at frequency rank #8,607, classified as anoun, pronounced \ʁa.sjo\. ration is at rank #19,645, tagged as anoun, pronounced \ʁa.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 28252, this pair ranks #323,962 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ratio vs ration

Shared letters: aiort. Private to "ratio": -. Private to "ration": n.

"ratio" · 5 letters · shape CVCVV  ·  "ration" · 6 letters · shape CVCVVC

Known mistypes of this pair

  • ratioartio · raito · ratoi · rattio · rratio · rtaio
  • rationartion · raiton · ratino · rationn · ratoin · rattion · rration · rtaion

Frequently Asked Questions

Can "ratio" and "ration" be used interchangeably?
No. They are said differently (\ʁa.sjo\ versus \ʁa.sjɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "ratio" or "ration"?
"ratio" is the more common of the two: it sits at frequency rank #8,607 in our French list, against #19,645 for "ration". 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 "ratio" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ration" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #323,962 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ratio" and "ration" also get mixed up with nearby pairs, the highest-scored neighbour is "radon vs ration". 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 #323,962 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