WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / B / booster shot booster shot noun /bustərʃɑt/ 2 syllables 12 letters Scrabble 16 WWF 16 Definitions noun an additional dose that makes sure the first dose was effective boosterbooster doserecall dose Look “booster shot” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →