What is the meaning of 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.

A booster dose.

A 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.

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

A power-up item.

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

A thief.

A booster engine fitted to a steam locomotive.

To give a booster shot to; to boost.

a boost (something that boosts)

booster

To boost

booster

Source: wiktionary.org