React means to do something because of an event or a person's action. It shows how you feel or what you do next.
I react quickly to loud noises.
She reacts kindly to new people.
In science, react means substances change or act when they meet. This often creates something new.
Iron reacts with oxygen to make rust.
The chemicals react when mixed together.
To react can also mean to show how you feel inside. You can show happy, sad, or other feelings.
He reacts with joy when he wins.
They react with surprise to news.
React can also mean to act against something you do not like. It shows resistance or disagreement.
People react against unfair rules.
Students react to changes in school.
React is a tool for making websites and apps. It helps users interact with the page easily.
React helps build web apps.
Developers use React for websites.
To react can mean showing a response to something physical like pain or sound. It can be a quick action.
He reacts badly to pain.
Dogs react quickly to sound.
