Synonyms of booster

2 Syllables

rocket, decoyed, sponsor, decoying, decoy, backer, patrons, puffers, rooter, puffer, patron

3 Syllables

abider, flatterer, enthusiast, injections, admirers, cajoler, flatterers, admirer, promoter, vaccine, votarient, cheerleader, supporter, cheerleaders, spaceship, wellwisher, wellwishers, exponent, promoters, sectator, injection, disciple, devotee, well-wisher, financer

4 Syllables

advertiser, advertisers, encourager

5 Syllables

immunization, immunizations