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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.

The charity has a No Plan B for MenB campaign, aiming to introduce an adolescent booster by 2030 and make the vaccine more affordable on the high street.

From BBC • Mar. 26, 2026

A billionaire booster helps with the public pitch.

From The Wall Street Journal • Mar. 23, 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

She said it would be a "real confidence booster" to receive financial support.

From BBC • Mar. 16, 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