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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.

Generally, it takes a couple of weeks to get full protection from a vaccine and some require booster doses.

From BBC • May 15, 2026

Most gasoline contains 10% ethanol as an octane booster.

From The Wall Street Journal • May 10, 2026

Jefferies analyst Andrew Tsai suspects the strong performance was partly due to Covid-19 booster sales in the UK.

From Barron's • May 1, 2026

It was Blue Origin’s third launch of the New Glenn rocket and its first attempt to reuse its booster.

From MarketWatch • Apr. 20, 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




Vocabulary lists containing booster


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