Definitions

1. verb

to cause a shock or a blow to (a person or an animal), often resulting in injury or unconsciousness

“She was knocked to the ground and concussed after the accident.”

2. verb

to shock or surprise (someone) deeply

“The news of her death concussed me and I couldn’t speak for hours.”

3. verb

to make something vibrate violently, especially to produce a shockwave

“The explosion concussed the windows of nearby buildings.”

4. noun

a shock or blow that results in unconsciousness

“The athlete suffered a concussion in the game.”

5. noun

a violent shaking or vibration, especially of the earth

“The earthquake caused a massive concussion in the city.”