Word: 反应 (fǎnyìng) Traditional: 反應 反应 dictionary entry fǎnyìng to react; to respond; reaction; response; reply; chemical reaction Full dictionary entry for 反应 Example sentences using 反应 2 sentences, showing page 1 of 1. 她反应很快。 Tā fǎnyìng hěn kuài. She has a very quick mind. 看看反应如何。 Kànkan fǎnyìng rúhé. Let's see what the reaction is.