réaction
French, noun/ʁe.ak.sjɔ̃/
réaction is spelled R-É-A-C-T-I-O-N (8 letters) and appears 48 times per million words in written French, the 1,739th most frequent French word form (wordfreq, 2021 data). Réaction is a French feminine noun meaning “reaction (action in response to an event)” (English Wiktionary, September 2026). The French Wiktionary (Wiktionnaire) defines it as “Action d’un corps sur un autre qui agit ou vient d’agir sur lui”.
What does réaction mean in English?
noun
- 1
femininereaction (action in response to an event)
en réaction à quelque chose
- 2
femininereaction
réaction chimique
- 3
femininereaction (action in response to an event)
moteur à réaction
- 4
femininereaction (action in response to an event)
réaction de Maréchal
- 5
femininereaction (reactionary politics; a period in which reactionary thought or politics is resurgent or dominant)
Source: English Wiktionary, French section, dump of September 2, 2026 (CC BY-SA 4.0).
How French dictionaries define it
noun: 1. Action d’un corps sur un autre qui agit ou vient d’agir sur lui. 2. Modifications d’ordre chimique résultant de l’action d’un corps sur un autre. 3. Capacité d'un produit à s'enflammer et propager un feu. 4. Action de l’organisme en réponse à une excitation quelconque.
The definition in the French Wiktionary (Wiktionnaire), in French.
Source: French Wiktionary (Wiktionnaire), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of réaction
- réactions plural
Source: English Wiktionary and French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026).
How do you pronounce réaction?
- /ʁe.ak.sjɔ̃/
- \ʁe.ak.sjɔ̃\
- [ʁe.ak.sjɔ̃]
Sources: English Wiktionary, French Wiktionary (Wiktionnaire) (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to réaction
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.
How common is réaction in French?
réaction appears 48 times per million words in written French.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).