Definitions

1. noun

Something that helps or increases something else, especially a vaccine or a device that increases the power of something.

“The new booster will give the car’s engine a significant power boost.”

2. verb

to increase or give extra help to something, especially a vaccine or a device that increases the power of something.

“The doctor will booster your vaccine to protect you from the new virus.”

3. noun

A person or thing that supports or promotes something, especially a cause or an event.

“The booster for the charity run helped to raise funds for the local hospital.”

4. noun

A device that increases the power or capacity of something, especially a rocket or a car.

“The booster engine helped the spacecraft reach orbit.”