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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.

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“But this is a confidence booster, for sure.”

From Los Angeles Times ● Nov. 9, 2026

The trick with thrusters was evocative of what SpaceX has now been doing for years with booster rockets cruising back to earth, touching down in landing pads or being snared by launch towers.

From Slate ● Oct. 19, 2026

I urge all who are eligible to come forward for their flu jab, their COVID-19 booster and their RSV vaccine.

From BBC ● Oct. 13, 2026

The huge first-stage booster, called "Super Heavy," will fall shortly after launch into waters of the Gulf of Mexico.

From Barron's ● Sep. 28, 2026

“Lose two games by two points and they’re ready to hang ’im,” he said quietly at the booster club meeting that Tuesday night following the loss to the Rebels.

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

Fancy boosters are getting minimal return on their investment.

From The Wall Street Journal ● Nov. 9, 2026

Gigantic, hypnotic portions of solid rocket boosters have been installed in the space gallery — displayed on their sides so guests can physically walk through them.

From Los Angeles Times ● Oct. 28, 2026

Most estrangement experts point to social media, and especially TikTok, as one of the biggest boosters of the trend.

From The Wall Street Journal ● Sep. 26, 2026

Thefts in L.A. were already surging when Milwaukee-based boosters launched their “Kia Boys” videos in the summer of 2021, and had begun to level off by time the meme hit national news a year later.

From Los Angeles Times ● Sep. 15, 2026

These were my boosters, my believers, my own personal gospel choir, singing, Yes, kid, you got this! all the way through.

From "Becoming" by Michelle Obama


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