BOOSTER

Definition of BOOSTER

  1. (noun)a person who backs a politician or a team etc.
  2. (noun)someone who is an active supporter and advocate
  3. (noun)a thief who steals goods that are in a store
  4. (noun)an amplifier for restoring the strength of a transmitted signal
  5. (noun)the first stage of a multistage rocket
  6. (noun)an additional dose that makes sure the first dose was effective