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 Microsoft has since moved its own quantum-safe deadline to 2029. — Amit Sinha, Forbes.com, 5 Oct. 2026 Those roles can span from technical quantum computing positions to human resources or business analytics. — Kate Perez, Chicago Tribune, 2 Oct. 2026 Today, entanglement is the foundation for quantum computing and next-generation sensors, among other applications. — ArsTechnica, 2 Oct. 2026 In 2025, the BIS Innovation Hub and several central banks tested quantum-resistant cryptography in a payment system. — Joao Gomes, Fortune, 2 Oct. 2026 See All Example Sentences for quantum
Recent Examples of Synonyms for quantum
  1. amount
  2. quantity
Noun
  • Enhanced oil recovery uses techniques such as carbon dioxide injection to increase the amount of crude oil produced from an oil field.
    — Jenny Lee, CNBC, 5 Oct. 2026
  • Garon notes that most people who bet on sports do so infrequently and with small amounts of money.
    — Shae Lake, Fortune, 5 Oct. 2026
Definition of amount
Noun
  • There was also a bottle of whiskey, six bottles of Coca-Cola and smelling salts of an unspecified quantity.
    — Daniel Libit, Sportico.com, 8 Oct. 2026
  • When complete, these new lines will transport vast quantities of copper, a metal used in solar panels, heat pumps, batteries, and electric vehicles.
    — Jared Cohen, Foreign Affairs, 7 Oct. 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 11 Oct. 2026.

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More from Merriam-Webster on quantum

Britannica.com: Encyclopedia article about quantum

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