ಅರ್ಥ : Show a response or a reaction to something.
ಸಮಾನಾರ್ಥಕ : respond
ಅರ್ಥ : Act against or in opposition to.
ಉದಾಹರಣೆ :
She reacts negatively to everything I say.
ಸಮಾನಾರ್ಥಕ : oppose
ಅರ್ಥ : Undergo a chemical reaction. React with another substance under certain conditions.
ಉದಾಹರಣೆ :
The hydrogen and the oxygen react.