booster

boost +‎ -er

• (General American) IPA^(key): /ˈbustɚ/

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booster (plural boosters)

1. Something that boosts.
2. The first stage of a multistage rocket that provides the thrust for liftoff and the initial flight.
3. A motor-generator set used for voltage regulation in direct current electrical power circuits.
4. Someone who is a fan or supporter of something.
   • 2012, The Economist, Lexington: A fiscal hawk, grounded

     Nor is his district quite the Democratic bastion boosters describe: voters there narrowly backed Barack Obama in 2008, but voted for Mr Bush by a hefty margin in 2004.

5. Someone who promotes a town or business.
6. A member of a booster club.
7. (immunology) A booster dose.

   When did you get your last tetanus booster?

   • 2021 October 11, Jan Hoffman, “Boosters Are Complicating Efforts to Persuade the Unvaccinated to Get Shots”, in The New York Times‎, ISSN 0362-4331:

     In the September vaccine monitor survey from the Kaiser Family Foundation, 71 percent of unvaccinated respondents said the need for boosters indicated that the vaccines were not working.

8. (explosives) A small quantity of a sensitive explosive that is triggered by a detonator and provides the energy needed to detonate a larger quantity of a less-sensitive explosive.
9. (linguistics) A term that serves to amplify or strengthen an utterance, such as "really".
10. (video games) A power-up item.
11. (gaming) A package of cards or figurines designed to add to a player's collection.
12. (slang) A thief.

    The security guard captured two boosters before they could exit the retail store.

13. (rail transport) A booster engine fitted to a steam locomotive.
    • 1941 January, “Recent North American Locomotives”, in Railway Magazine, page 27:

      Another notable new series of locomotives, now in course of delivery to the Canadian National Railways, [...]. Fifteen are being built by the Montreal Locomotive Works Limited, and ten by the Canadian Locomotive Company, of Kingston, Ontario; the former are being provided with boosters and the latter are not.

booster (third-person singular simple present boosters, present participle boostering, simple past and past participle boostered)

1. (transitive, medicine) To give a booster shot to; to boost.
   • 2022 January 3, Joelle Goldstein, “Jimmy Fallon Reveals He Tested Positive for COVID: 'I Was Vaccinated and Boostered'”, in People‎:

     "Hey guys, on the first day of our holiday break I tested positive for Covid. I was vaccinated and boostered which made me lucky enough to only have mild symptoms," he wrote beside a photo that showed him sitting alone inside a testing room wearing a mask.

   • 2022 January 11, Jessica Jacob, “Health Workers, ‘Risking Their Own Lives to Save Ours’”, in The New York Times‎:

     What I would prefer over hazard pay would be for every one of our patients to get vaccinated and boostered, as we request constantly. That would be what would make me happy.

• Booters, Boteros, booters, reboost, reboots

Borrowed from English booster.

• IPA^(key): /ˈbu(ː)s.tər/
• Hyphenation: boos‧ter
• Rhymes: -ustər

booster m (plural boosters, diminutive boostertje n)

1. A boost (something that boosts).

• boostercampagne
• boosterdosis
• boosterprik
• boosterstrategie
• boostervaccin
• boostervaccinatie

• boosteren
• boosterpack

booster m (plural boosters)

1. booster