booster Synonyms

promoter recall dose booster shot booster dose booster amplifier relay station supporter protagonist champion shoplifter booster rocket booster unit friend plugger lifter admirer tramper shot sustainer shill seducement showman strengthener touter thruster sympathizer peculator upholder seconder panegyrist partisan patron philhellene philhellenic sectator proponent propeller puffer raiser reviver rooter overpressure vaccination vaccine ICBM intercontinental ballistic missile booster station relay link relay transmitter takeoff booster