BOOSTER Meaning of BOOSTER in English nounBooster is used before these nouns: ↑ injection , ↑ seat , ↑ shot , ↑ vaccinationBooster is used after these nouns: ↑ confidence , ↑ morale , ↑ rocket Oxford Collocations English Dictionary. Оксфордский английский словарь словосочетаний . 2012