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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 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

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

The China National Space Administration abandoned a project they'd worked on for years just to provide a booster.

From "The Martian" by Andy Weir