quantum

noun

ˈkwän-təm How to pronounce quantum (audio)
Definition of quantumnext
as in amount
a given or particular mass or aggregate of matter the sum of human knowledge is now so immense that even a highly educated person can hope to absorb only a tiny quantum of it

Synonyms & Similar Words

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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 quantum In 2024, researchers established a three-node quantum network. — Aamir Khollam, Interesting Engineering, 14 Aug. 2026 The impact of the fractal uncertainty principle won’t stop with quantum chaos. — Shalma Wegsman, Quanta Magazine, 12 Aug. 2026 Instead of dealing with quantum gravity or the nature of time, suddenly everyone seemed to be talking about machine learning. — Manon Bischoff, Scientific American, 11 Aug. 2026 The hardest problem in quantum computing isn’t building more qubits. — John Koetsier, Forbes.com, 7 Aug. 2026 See All Example Sentences for quantum
Recent Examples of Synonyms for quantum
  1. amount
  2. quantity
Noun
  • Shoppers say the fabric has just the right amount of stretch, holds its shape, doesn’t show bra lines, and washes easily without shrinking or pilling.
    — Emily Weaver, PEOPLE, 16 Aug. 2026
  • Keep portion sizes in mind, as the amount of carbohydrates eaten at one time can affect blood sugar levels.
    — Morgan Pearson, Verywell Health, 16 Aug. 2026
Definition of amount
Noun
  • To force Davis’ cooperation, Dupree said investigators gathered evidence that Davis, now 63, had sold a large quantity of PCP through his home, exposing him to a potential life sentence and leaving his family open to charges.
    — Richard Winton, Los Angeles Times, 21 Aug. 2026
  • Bad-for-you fats are pretty hard to obtain in dry, low weight at high quantities, so you’re backed into eating good-for-you fats anyway.
    — Diana Helmuth, Outdoor Life, 20 Aug. 2026
Definition of quantity

Phrases Containing quantum

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quantity
quantum
quantum leap
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Cite this Entry

“Quantum.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quantum. Accessed 22 Aug. 2026.

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More from Merriam-Webster on quantum

Nglish: Translation of quantum for Spanish Speakers

Britannica.com: Encyclopedia article about quantum

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