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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

For older children or adults, a MenB vaccine or booster costs about £220 privately.

From BBC • Apr. 3, 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

The booster involved has already flown 13 missions, and is expected to land on a ship in the Pacific Ocean.

From Los Angeles Times • Mar. 16, 2026

“If that won’t get you excited, I can’t believe you can get ex-cited,” said booster club president Doug Hendrick.

From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger