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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

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

He has been up and down this season, in and out of the team, but this will be a real confidence booster for him and Arsenal.

From BBC • Feb. 23, 2026

Boyles was a die-hard booster, one of those who set his life each fall to the clock of the season.

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