booster

noun

ˈbü-stər How to pronounce booster (audio)
Definition of boosternext
as in proponent
a person who actively supports or favors a cause rah-rah boosters for the sports team will be attending the game and carrying large signs

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of booster Company adoption has proved slower than some of the boosters promised. — Matt Peterson,kate Rooney, CNBC, 12 Aug. 2026 Following separation from Falcon 9's main booster, the rocket's second stage flew onward to LEO, delivering its 24 Starlink satellites about one hour after liftoff. — Josh Dinner, Space.com, 12 Aug. 2026 In that test, the first-stage booster returned to a floating platform about six minutes after ⁠the separation of its first and upper stage, according to state broadcaster CCTV. — Sylvie Zhuang, CNN Money, 11 Aug. 2026 Some college boosters and coaches had long found ways to pay choice recruits or their families. — Ken Makin, Christian Science Monitor, 11 Aug. 2026 See All Example Sentences for booster
Recent Examples of Synonyms for booster
  1. proponent
  2. supporter
  3. advocate
  4. advocator
  5. exponent
  6. promoter
Noun
  • On Monday, the act gained its highest-profile proponent yet when New York City mayor Zohran Mamdani announced his support for the legislation.
    — Glenn Taylor, Footwear News, 13 Aug. 2026
  • Andrew Sweetman, the Scottish marine biogeochemist who led the work, hadn’t made such claims, but he was still pilloried by fellow-scientists, and proponents of mining accused him of being an anti-mining crusader.
    — James Dinneen, New Yorker, 13 Aug. 2026
Definition of proponent
Noun
  • Russia, along with China, is a major supporter and arms supplier to Myanmar.
    — ABC News, ABC News, 17 Aug. 2026
  • It was drafted with tenant input and by a diverse coalition of community supporters.
    — Chicago Tribune, Chicago Tribune, 16 Aug. 2026
Definition of supporter
Noun
  • Some of us assist in delivery rooms, some of us administer medications, some of us advocate for our patients to insurance companies to make sure lifesaving is covered.
    — Nancy Hagans, New York Daily News, 16 Aug. 2026
  • Banks, the first saxophonist to receive the prestigious Avery Fisher Award, is a tireless advocate for his instrument in the classical world.
    — Beth Wood, San Diego Union-Tribune, 16 Aug. 2026
Definition of advocate
Noun
  • In the leadership and care phase, your role is that of an advocator.
    — Rodney C. Adkins, Forbes.com, 19 May 2026
Definition of advocator
Noun
  • His mind didn’t go blank; rather, all the what-ifs multiplied like exponents, crowding his thoughts and rendering him unable to envision anything else.
    — Min Jin Lee, New Yorker, 19 July 2026
  • Often categorized along with Bellow and Bernard Malamud as exponents of a particularly Jewish-American sensibility, all three were additionally masters of the American voice.
    — Literary Hub, Literary Hub, 4 June 2026
Definition of exponent
Noun
  • Terrell, who is gay and doubles as a night-club promoter, brings in scores of drinkers to their perpetually sleepy pub, transforming it into Philadelphia’s trendiest gay bar.
    — Paula Mejía, New Yorker, 17 Aug. 2026
  • The concert promoter’s local portfolio leaves a gap in the market for acts that have graduated beyond the smaller venues but aren’t yet drawing arena-sized crowds, Schalk said.
    — Jennifer Van Grove, San Diego Union-Tribune, 17 Aug. 2026
Definition of promoter

Browse Nearby Words

boosted
booster
boosters
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Cite this Entry

“Booster.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/booster. Accessed 18 Aug. 2026.

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Nglish: Translation of booster for Spanish Speakers

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