booster

Something that boosts.

Short for booster seat.

The first stage of a multistage rocket that provides the thrust for liftoff and the initial flight.

A motor-generator set used for voltage regulation in direct current electrical power circuits.

Someone who is a fan or supporter of something.

Someone who promotes a town or business.

A member of a booster club.

immunologyA booster dose.

“When did you get your last tetanus booster?”

explosivesA small quantity of a sensitive explosive that is triggered by a detonator and provides the energy needed to detonate a larger quantity of a less-sensitive explosive.

linguisticsA term that serves to amplify or strengthen an utterance, such as "really".

video gamesA power-up item.

gamingA package of cards or figurines designed to add to a player's collection.

slangA thief.

“The security guard captured two boosters before they could exit the retail store.”

railA booster engine fitted to a steam locomotive.

medicineTo give a booster shot to; to boost.