react
gb/ɹiˈækt/ us/ɹiˈækt/
A2
Anglais
~ 3000
Sens
0 sens
Verbe
A2
action
1
Respond to an action or event
To do or say something because of what just happened or was said.
Schéma d’usage :
to react to [something]
Erreur fréquente :
Learners sometimes confuse 'react' with 'respond', but 'react' often suggests a more immediate, emotional, or physical action.
Synonymes
respond (More general and neutral; can be used for both verbal and non-verbal replies.)
Antonymes
ignore (Means to deliberately not respond to something.)
Collocations
react quickly
|react angrily
|react positively
|react to criticism
|react under pressure
Thèmes
communication
|daily life
|emotions
|core_vocabulary
Exemples
- She reacted angrily to the unfair comment.
- The company reacted quickly to the sudden drop in sales.
- He didn't know how to react when he heard the news.
- The audience reacted with laughter.
- They reacted positively to the new proposal.
Exemples pédagogiques
- I reacted to the loud noise.
- She reacted with a smile.
- They reacted when they saw the dog.
- He reacted to my question.
- We reacted fast when the phone rang.
Verbe
technical
B1
action
2
Undergo chemical change
When a substance changes because it touches another substance.
Schéma d’usage :
to react with [substance]
Erreur fréquente :
Learners may use 'react' in chemistry without specifying 'with', which is needed to clarify the other substance involved.
Synonymes
combine (In chemistry, 'combine' can mean join together, but it does not always imply a chemical change.)
Antonymes
remain inert (Means not undergoing any chemical reaction.)
Collocations
react chemically
|react violently
|react with oxygen
|react with acid
Thèmes
science
|chemistry
Exemples
- Sodium reacts violently with water.
- The metal will react with oxygen over time.
- This compound reacts with acids to form salts.
- Hydrogen reacts with oxygen to produce water.
Exemples pédagogiques
- Water reacts with hot metal.
- This powder reacts with water.
- The gas reacts with air.
- Iron reacts with oxygen.
- Salt reacts with some chemicals.
Verbe
B1
action
3
Show emotional response to event
To show feelings because of what happens.
Schéma d’usage :
to react [adverb] to [something]
Erreur fréquente :
Learners may confuse this meaning with general 'respond', but here the focus is specifically on emotions shown outwardly.
Synonymes
overreact (Means to respond too strongly or emotionally compared to what is reasonable.)
Antonymes
stay calm (Means not showing strong emotion in response to something.)
Collocations
react emotionally
|react calmly
|react badly
|react strongly
Thèmes
emotions
|daily life
|core_vocabulary
Exemples
- She reacted calmly to the bad news.
- He reacted strongly when accused of lying.
- They reacted emotionally to the movie's ending.
Exemples pédagogiques
- I reacted happily to the gift.
- She reacted sadly to the news.
- He reacted angrily to my words.
Grammaire
Forme canonique
react
API
GB/ɹiˈækt/
US/ɹiˈækt/
Syllabes et accentuation
re - act (2 syllabes)
Stress on 2nd syllable (act)
Formes du mot
Verb
- Base: react
- 3rd Person Singular: reacts
- Present Participle: reacting
- Past: reacted
Famille de mots
Expressions
overreact to
1/ˈoʊvɚɹiˈækt tə/
fixed phrase
Respond too strongly
To act too strongly because of something small or unimportant.
Exemples
- He overreacted to the small mistake.
- Don't overreact to what she said.
react against
1/ɹiˈækt əɡˈɛnst/
phrasal verb
Oppose in response
To act in a way that shows you are against something because of what happened before.
Exemples
- Many young people reacted against the strict rules of their parents.
- The voters reacted against the government's policies.
react with shock
1/ɹiˈækt wˈɪθ ʃˈɑk/
fixed phrase
Show surprise and disbelief
To show surprise and that you cannot believe something happened.
Exemples
- The crowd reacted with shock when they heard the verdict.
- She reacted with shock at the sudden announcement.