booster

If you’re a big fan and promoter of something or someone, you're a booster. Go team! A booster provides support, like a kid’s booster seat, a follow-up dose of medicine, or a booster rocket that launches the Space Shuttle.

Boosters of teams, groups, or organizations often form official clubs to coordinate their fundraising and event planning. Another kind of booster is an engine or rocket that's the first stage of launching a space vehicle into orbit. And in medicine, a booster is a second (or subsequent) dose of a vaccine that helps the initial dose work better. All of these boosters assist, encourage, or boost in some way.

Definitions of booster
  1. noun
    someone who is an active supporter and advocate
    synonyms: plugger, promoter
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    types:
    barker
    someone who stands in front of a show (as at a carnival) and gives a loud colorful sales talk to potential customers
    type of:
    adman, advertiser, advertizer
    someone whose business is advertising
  2. noun
    a person who backs a politician or a team etc.
    synonyms: admirer, champion, friend, protagonist, supporter
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    types:
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    anglophil, anglophile
    an admirer of England and things English
    believer, truster
    a supporter who accepts something as true
    Boswell
    a devoted admirer and recorder of another's words and deeds
    cheerleader
    an enthusiastic and vocal supporter
    Confederate
    a supporter of the Confederate States of America
    corporatist
    a supporter of corporatism
    enthusiast, partisan, partizan
    an ardent and enthusiastic supporter of some person or activity
    Francophil, Francophile
    an admirer of France and everything French
    free trader
    an advocate of unrestricted international trade
    functionalist
    an adherent of functionalism
    Jacobite
    a supporter of James II after he was overthrown or a supporter of the Stuarts
    loyalist, stalwart
    a person who is loyal to their allegiance (especially in times of revolt)
    New Dealer
    a supporter of the economic policies in the United States known as the New Deal
    Graecophile, philhellene, philhellenist
    an admirer of Greece and everything Greek
    mainstay, pillar
    a prominent supporter
    Roundhead
    a supporter of parliament and Oliver Cromwell during the English Civil War
    seconder
    someone who endorses a motion or petition as a necessary preliminary to a discussion or vote
    Shavian
    an admirer of G. B. Shaw or his works
    endorser, indorser, ratifier, subscriber
    someone who expresses strong approval
    sympathiser, sympathizer, well-wisher
    someone who shares your feelings or opinions and hopes that you will be successful
    toaster, wassailer
    someone who proposes a toast; someone who drinks to the health of success of someone or some venture
    maintainer, sustainer, upholder
    someone who upholds or maintains
    verifier, voucher
    someone who vouches for another or for the correctness of a statement
    Whig
    a supporter of the American Revolution
    abiogenist
    a believer in abiogenesis
    addict, freak, junkie, junky, nut
    someone who is so ardently devoted to something that it resembles an addiction
    apostle
    an ardent early supporter of a cause or reform
    backslapper
    someone who demonstrates enthusiastic or excessive cordiality
    balletomane
    a ballet enthusiast
    bleeding heart
    someone who is excessively sympathetic toward those who claim to be exploited or underprivileged
    colonialist
    a believer in colonialism
    Confederate soldier
    a soldier in the Army of the Confederacy during the American Civil War
    Confucian, Confucianist
    a believer in the teachings of Confucius
    evolutionist
    a person who believes in organic evolution
    fanatic, fiend
    a person motivated by irrational enthusiasm (as for a cause)
    fellow traveler, fellow traveller
    a communist sympathizer (but not a member of the Communist Party)
    gadgeteer
    a person who delights in designing or building or using gadgets
    imperialist
    a believer in imperialism
    Malthusian
    a believer in Malthusian theory
    shutterbug
    a photography enthusiast
    fan, rooter, sports fan
    an enthusiastic devotee of sports
    vitalist
    one who believes in vitalism
    type of:
    advocate, advocator, exponent, proponent
    a person who pleads for a person, cause, or idea
  3. noun
    the first stage of a multistage rocket
    synonyms: booster rocket, booster unit, takeoff booster, takeoff rocket
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    type of:
    rocket, rocket engine
    a jet engine containing its own propellant and driven by reaction propulsion
  4. noun
    an additional dose that makes sure the first dose was effective
    synonyms: booster dose, booster shot, recall dose
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    type of:
    dosage, dose
    a measured portion of medicine taken at any one time
  5. noun
    an amplifier for restoring the strength of a transmitted signal
    synonyms: booster amplifier, booster station, relay link, relay station, relay transmitter
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    type of:
    amplifier
    electronic equipment that increases strength of signals passing through it
  6. noun
    a thief who steals goods that are in a store
    synonyms: lifter, shoplifter
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    type of:
    stealer, thief
    a criminal who takes property belonging to someone else with the intention of keeping it or selling it
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