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Definitions

booster

[boo-ster] / ˈbu stər /
NOUN
supporter
Synonyms
Antonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Those include a redesigned propellant system on its booster and improved Raptor engines.

From The Wall Street Journal • Apr. 4, 2026

SpaceX’s Starship is designed to be the most powerful rocket ever built, consisting of a booster that propels a large spacecraft into space.

From The Wall Street Journal • Apr. 4, 2026

The vaccine is given at eight and 12 weeks, with a booster at one year - Emma confirmed Noa-Rose received all of these.

From BBC • Mar. 26, 2026

Using a standard booster approach in mice, both vaccine types produced similar antiviral T cell and antibody-producing B cell responses.

From Science Daily • Mar. 17, 2026

Mr. Donnelly, aside from being an outlaw wanted by the Architectural Committee, is a big University of Florida football booster.

From "Tangerine" by Edward Bloor




Vocabulary lists containing booster