react

«react» in Mova's school dictionary: To act, speak or feel in a certain way because of… — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

part of speech

verb (react, reacts, reacted, reacting); noun: reaction

meaning for a pupil

1) To act, speak or feel in a certain way because of something that has happened (How did she react to the news?). tree →

2) (science) To change when mixed with another substance, making something new (chemical reaction). tree →

3) (health) To become ill or get a rash after eating, touching or breathing something (an allergic reaction). tree →

4) React against: to do the opposite of what you are told or what others do. tree →

sense in the lessons

In science, when vinegar and baking soda react they make carbon dioxide gas (fizzing); iron reacts with water and air to make rust. In feelings lessons, we learn to react calmly — stop, breathe, think — rather than lashing out. In health: some people react badly to peanuts or bee stings, and need help fast. In sport and safety, quick reactions help you dodge a ball or stop your bike. Phrases: react to, react with, react quickly, overreact, allergic reaction.

examples

• How did your mum react when you told her? tree →
• Vinegar reacts with baking soda and fizzes. tree →
• He reacted quickly and caught the falling glass. tree →
• Some people react to peanuts and need medicine fast. tree →
• Don't react angrily — count to ten first. tree →
• Iron reacts with water and air to make rust. tree →
• The cat reacted to the noise by hiding under the bed. tree →

note

«React to» something (a person reacts to news); «react with» something (a chemical reacts with another). Noun: reaction. «Overreact» = react too strongly.

In the corpora

• When you see something upsetting, the body reacts fast: the heart races, the cheeks go hot, you may freeze.
• A mosquito had dinner while you slept, and the itch is your body reacting to its spit.
• A bath bomb holds a dry acid and baking soda that react only when water lets them meet, making carbon dioxide bubbles.
• Toast turns brown because sugars and proteins react into new substances; burnt toast is black because it has partly turned into carbon.
• Silver tarnishes because it reacts with sulphur gases in the air and makes a thin black layer.

Trees and pragmatics

Every meaning and example of «react» parsed by Mova, each sentence with its dependency tree and frames.