acceleration

noun

Definition of accelerationnext
as in rate
an increasing in speed or rate of occurrence Experts predict a steady acceleration in economic growth over the next two years.

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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 acceleration When robot arms undergo rapid directional shifts and accelerations up to 10 g, this internal steel cable absorbs the primary tensile loads. — IEEE Spectrum, 3 Sep. 2026 As this cycle matures, AI enables further acceleration across robotics, advanced data analytics, satellite IoT backhaul, digital twins and sustainability. — Alper Yegin, Forbes.com, 1 Sep. 2026 Bringing home a 65-inch 4K television equipped with discrete local dimming zones, high brightness output, and 144Hz VRR gaming acceleration, under $500, is an extraordinary value. — Juhi Wadia, PC Magazine, 31 Aug. 2026 But research that began in the 1990s has shown that something sparked an acceleration of the universe’s expansion about 6 billion years ago, and the cause remains unknown. — Ashley Strickland, CNN Money, 30 Aug. 2026 See All Example Sentences for acceleration
Recent Examples of Synonyms for acceleration
  1. rate
  2. pace
  3. speed
  4. velocity
Noun
  • Western officials and analysts say the Russian rate of advance has slowed significantly this year.
    — Arkansas Online, Arkansas Online, 12 Sep. 2026
  • This advancement addresses a significant challenge in hydrogen fuel cells, specifically the rate at which protons traverse the catalyst layer responsible for electricity generation.
    — Sujita Sinha, Interesting Engineering, 11 Sep. 2026
Definition of rate
Noun
  • Avio is looking to boost the pace of Vega-C rocket flights to six missions per year, roughly double the current level, and potentially go another 50 percent higher, Aviation Week reports.
    — Eric Berger, ArsTechnica, 11 Sep. 2026
  • Know More The accelerating pace of extreme weather has made snowfall on Vail’s properties less predictable.
    — Rohan Goswami, semafor.com, 11 Sep. 2026
Definition of pace
Noun
  • Nearly everyone rides a stationary bike — high tension, low speed — after a match and quickly downs a protein recovery drink.
    — Matthew Futterman, New York Times, 6 Sep. 2026
  • The storm, now moving west-northwest at just 5 mph, is forecast to turn northward to north-northeastward with an increase in forward speed Sunday and Monday, the National Hurricane Center said in its latest update.
    — Doyle Rice, USA Today, 5 Sep. 2026
Definition of speed
Noun
  • The rocket’s second stage ignited a single Aquila engine and accelerated to orbital velocity—some 5 miles per second—about seven minutes into the flight.
    — Stephen Clark, ArsTechnica, 6 Sep. 2026
  • The right-hander, who came to the Mets from the Milwaukee Brewers in the trade for Freddy Peralta, was the long man out of the bullpen at the start of the year and pitched well until his velocity started to decline.
    — Abbey Mastracco, New York Daily News, 6 Sep. 2026
Definition of velocity

Browse Nearby Words

accelerating
acceleration
accent
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Cite this Entry

“Acceleration.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/acceleration. Accessed 12 Sep. 2026.

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More from Merriam-Webster on acceleration

Britannica.com: Encyclopedia article about acceleration

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