(LONGMAN2000) react | Definition: 反应 | (IELTS4000) react | Definition: act against or in opposition to; show a response or a reaction | (NGSL) react | Definition: To behave or make a change in a particular way | | (ESS4000) react | Definition: To react is to act in a certain way because of something that happened. | Example: →James reacted badly to the news. |