Definitions

1. noun

a powerful or sudden effect of an event, action, or person

“The company’s financial crisis had a significant impact on the stock market.”

2. verb

to have a strong or sudden effect on someone or something

“The news had a big impact on her decision to change her plans.”

3. noun

a collision or crash, especially of vehicles

“The impact of the car on the tree was tremendous.”

4. noun

a place or area where something has an effect

“The impact zone is clearly marked with warning signs.”