US: /ɹiˈækt/
UK: /ɹɪˈækt/

English Vietnamese dictionary

react /ri:'ækt/
  • nội động từ
    • tác động trở lại, ảnh hưởng trở lại, phản ứng lại
      • tyranny reacts upon the tyrant himself: sự bạo ngược tác hại trở lại ngay đối với kẻ bạo ngược
    • (vật lý); (hoá học) phản ứng
    • (+ against) chống lại, đối phó lại
    • (quân sự) phản công, đánh trả lại lại
    • (tài chính) sụt, hạ (giá cả)

Advanced English dictionary

+ verb [V]
1 ~ (to sth) (by doing sth) to change or behave in a particular way as a result of or in response to sth: Local residents have reacted angrily to the news. + I nudged her but she didn't react. + You never know how he is going to react. + The market reacted by falling a further two points.
2 to become ill/sick after eating, breathing, etc. a particular substance: People can react badly to certain food additives.
3 ~ (with sth)
~ (together) (chemistry) (of substances) to experience a chemical or physical change when coming into contact with another substance: Iron reacts with water and air to produce rust. + When an acid and an alkali react together the result is a salt and water.
Phrasal Verbs: react against sb/sth to show dislike or opposition in response to sth, especially by deliberately doing the opposite of what sb wants you to do: He reacted strongly against the artistic conventions of his time.

Thesaurus dictionary

1 act, behave, conduct oneself, proceed; retaliate, reciprocate, get even:
I wonder how you would have reacted if someone had insulted you!
2 respond, answer, reply, retort:
The crowd reacted to the police presence by becoming very nasty. She reacted with surprise on learning of his arrest.

Collocation dictionary


strongly | favourably, positively, sympathetically
people who react positively to change
| adversely, badly, negatively, unfavourably | aggressively, angrily, violently | cautiously, coolly | sharply | appropriately | immediately, instantly | quickly, swiftly
The police must be able to react swiftly in an emergency.
| differently | accordingly
His insensitive remarks hurt and she reacted accordingly.
| automatically, instinctively, spontaneously | physically


tend to | be slow to
The industry has been slow to react to these breakthroughs in technology.
| not know how to
He did not know how to react to her sudden mood swings.


Many young people react against traditional values.
| by
The government reacted by increasing taxation.
| to
The university reacted unfavourably to the proposals.
| with
Her family reacted with horror when she told them.

Concise English dictionary

+show a response or a reaction to something
+undergo a chemical reaction; react with another substance under certain conditions
+act against or in opposition to