Synonyms:
booster, booster_dose, booster_shot, recall_dose
Meaning: an additional dose that makes sure the first dose was effective
Synonyms:
booster, booster_rocket, booster_unit, takeoff_booster, takeoff_rocket
Meaning: the first stage of a multistage rocket
Synonyms:
booster, booster_amplifier, booster_station, relay_link, relay_station, relay_transmitter
Meaning: an amplifier for restoring the strength of a transmitted signal
Synonyms:
booster, shoplifter, lifter
Meaning: a thief who steals goods that are in a store
Synonyms:
promoter, booster, plugger
Meaning: someone who is an active supporter and advocate
Synonyms:
supporter, protagonist, champion, admirer, booster, friend
Meaning: a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"