booster

noun

boost·​er ˈbü-stər How to pronounce booster (audio)
: one that boosts: such as
a
: an enthusiastic supporter
b
: an auxiliary device for increasing force, power, pressure, or effectiveness
c
slang : shoplifter
d
: a radio-frequency amplifier for a radio or television receiving set
e
: the first stage of a multistage rocket providing thrust for the launching and the initial part of the flight
f
: a substance or dose used to renew or increase the effect of a drug or immunizing agent
especially : booster shot

Examples of booster in a Sentence

These exercises are real metabolism boosters. Music is my favorite mood booster. A sincere compliment can be a true confidence booster. The university has a number of wealthy boosters who contribute generously each year. a new design for rocket boosters
Recent Examples on the Web Like the previous test, the aim was for Ship to make a splashdown in the Indian Ocean while the Super Heavy booster drops into the Gulf of Mexico near the SpaceX Starbase. Andrew Paul, Popular Science, 6 June 2024 Last November, in a second test, the spacecraft and booster successfully separated, then both exploded shortly after, Space.com’s Josh Dinner wrote at the time. Will Sullivan, Smithsonian Magazine, 6 June 2024 SpaceX’s third test created a wealth of new data that showed a lack any critical safety issues, according to the FAA, although its upper stage fell to pieces on reentry and the company was forced to explode the Super Heavy booster above the Gulf of Mexico. William Gavin, Quartz, 6 June 2024 Remember this show is also honoring the late Rick Holden, a passionate arts advocate San Jose booster and leader of the effort to bring a permanent Levitt Pavilion concert stage to the park who died suddenly April 10. Sal Pizarro, The Mercury News, 30 May 2024 See all Example Sentences for booster 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'booster.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of booster was in 1888

Dictionary Entries Near booster

Cite this Entry

“Booster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/booster. Accessed 23 Jun. 2024.

Kids Definition

booster

noun
boost·​er ˈbü-stər How to pronounce booster (audio)
1
: one that boosts
2
: an enthusiastic supporter
3
4
: a device for strengthening radio or television signals
5
: the first stage of a multistage rocket providing force for the launching and the first part of the flight

Medical Definition

booster

noun
boost·​er ˈbü-stər How to pronounce booster (audio)
: a substance or dose used to renew or increase the effect of a drug or immunizing agent: such as
a(1)
(2)
b
: synergist sense 1
a chemical acting as a booster to sulfa drugs

More from Merriam-Webster on booster

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