react
verb OPAL S
/riˈækt/
/riˈækt/
Verb Forms
Phrasal Verbs| present simple I / you / we / they react | /riˈækt/ /riˈækt/ |
| he / she / it reacts | /riˈækts/ /riˈækts/ |
| past simple reacted | /riˈæktɪd/ /riˈæktɪd/ |
| past participle reacted | /riˈæktɪd/ /riˈæktɪd/ |
| -ing form reacting | /riˈæktɪŋ/ /riˈæktɪŋ/ |
- [intransitive] to change or behave in a particular way as a result of or in response to something
- I nudged her but she didn't react.
- You never know how he is going to react.
- He would have reacted in the same way.
- react to something Local residents have reacted angrily to the news.
- react by doing something The market reacted by falling a further two points.
- react to something by doing something The army has reacted to the situation by increasing investment in recruitment.
- react with something Her family reacted with horror when she told them.
- Residents have reacted with fury to the news.
Extra ExamplesTopics Change, cause and effecta2- His insensitive remarks hurt and she reacted accordingly.
- The committee reacted positively to the proposals.
- The government reacted by increasing taxation.
- The industry has been slow to react to these breakthroughs in technology.
- The police must be able to react swiftly in an emergency.
- people who react positively to change
Oxford Collocations Dictionaryadverb- strongly
- favourably/favorably
- positively
- …
- tend to
- be slow to
- not know how to
- …
- against
- by
- to
- …
- [intransitive] to become ill after eating, breathing, etc. a particular substance
- react + adv. Some patients may react adversely.
- react (+ adv.) to something People can react badly to certain food additives.
- People react differently to these drugs.
Oxford Collocations Dictionaryadverb- strongly
- favourably/favorably
- positively
- …
- tend to
- be slow to
- not know how to
- …
- against
- by
- to
- …
- [intransitive] (chemistry) (of substances) to experience a chemical change when coming into contact with another substance
- Silicon reacts chemically like carbon.
- react with something Iron reacts with water and air to produce rust.
- react together When an acid and an alkali react together the result is a salt and water.
WordfinderTopics Physics and chemistryb2- acid
- catalyst
- chemistry
- compound
- formula
- molecule
- pH
- react
- solution
- valency
Oxford Collocations Dictionaryadverb- strongly
- favourably/favorably
- positively
- …
- tend to
- be slow to
- not know how to
- …
- against
- by
- to
- …
Word Originmid 17th cent.: from re- (expressing intensive force or reversal) + act, originally suggested by medieval Latin react- ‘done again’, from the verb reagere.