Definitions

1. noun

a blow to the head or body that can cause injury or unconsciousness

“The football player suffered a concussion during the game and was forced to sit out the rest of the season.”

2. noun

a shock or sudden blow to the mind or emotions

“The news of her death was a concussion to the community, which was left reeling in shock.”

3. verb

to cause a blow to the head or body that can cause injury or unconsciousness

“She was concussed by the car accident and spent several days in the hospital.”