réactionsvsréductionsWhich spelling fits?

Which to use

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

#3,358
“réactions” frequency rank
#10,402
“réductions” frequency rank
13760
confusion score

Side-by-Side Comparison

Feature réactions réductions
Definition Pluriel de réaction. Pluriel de réduction.

Where the eye mixes réactions and réductions

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

9 ch
réactions
10 ch
réductions

Look-alike desk: réactions vs réductions

A purely visual mix-up. réactions (\ʁe.ak.sjɔ̃\) and réductions (\ʁe.dyk.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 13760, derived from the frequency rank of both members and their visual similarity.

réactions is recorded at frequency rank #3,358, classified as anoun, pronounced \ʁe.ak.sjɔ̃\. réductions is at rank #10,402, tagged as anoun, pronounced \ʁe.dyk.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 13760, this pair ranks #399,660 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of réactions vs réductions

Shared letters: cinorsté. Private to "réactions": a. Private to "réductions": du.

"réactions" · 9 letters · shape CVVCCVVCC  ·  "réductions" · 10 letters · shape CVCVCCVVCC

Frequently Asked Questions

Do "réactions" and "réductions" mean the same thing in a sentence?
No. They are said differently (\ʁe.ak.sjɔ̃\ versus \ʁe.dyk.sjɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "réactions" vs "réductions" - which ranks higher?
"réactions" is the more common of the two: it sits at frequency rank #3,358 in our French list, against #10,402 for "réductions". 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 "réactions" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "réductions" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #399,660 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "réactions" and "réductions" also get mixed up with nearby pairs, the highest-scored neighbour is "reduction vs réductions". Nearby pair

Confusion rank #399,660 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