booster C2+ Topic:People & Society US /ˈbustər/ UK /ˈbuːstə/ See IPA manual Meanings 1 noun a person or device that boosts or promotes something A booster rocket lifted the satellite into orbit. Thesaurus Synonyms 1 noun · a person or device that... promotersupporteradvocatebackeramplifierchampion ↔ Opposites detractorcritic Word family Related forms boost Etymology AI details From boost + -er. Boost is of uncertain origin, American English of the early 19th century, perhaps imitative or a blend. Topics People & Society Word Formation & Derivatives External links Google Images Cambridge Dictionary Wiktionary # booster **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /ˈbustər/ **IPA (UK):** /ˈbuːstə/ ## Meanings 1. a person or device that boosts or promotes something ## Examples - A booster rocket lifted the satellite into orbit. ## Synonyms - promoter - supporter - advocate - backer - amplifier - champion ## Antonyms - detractor - critic ## Related Forms - boost ## Etymology From boost + -er. Boost is of uncertain origin, American English of the early 19th century, perhaps imitative or a blend. ## AI Etymology Booster is from boost + -er. Boost is of uncertain origin, American English of the early 19th century, perhaps imitative or a blend. Morphologically, the word is a built form whose named elements carry part of the historical sense. The current sense covers a person or device that boosts or promotes something. The wider family includes related words such as boost. ## Topics - People & Society - Word Formation & Derivatives markdown