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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.

Each phase of the ascent was, in the understated language of mission control, "nominal": maximum dynamic pressure, main engine cut-off and booster separation.

From BBC • Apr. 7, 2026

SpaceX’s Starship is designed to be the most powerful rocket ever built, consisting of a booster that propels a large spacecraft into space.

From The Wall Street Journal • Apr. 4, 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

If she hadn’t been buckled into her booster seat I think she would have rocketed clear across the car.

From "The Benefits of Being an Octopus" by Ann Braden




Vocabulary lists containing booster