big bang
noun
: the cosmic explosion that marked the beginning of the universe according to the big bang theory
In 1965 Arno A. Penzias and Robert W. Wilson of the Bell Telephone Laboratories discovered that the space of the universe is bathed with a diffuse radiation that is assumed to persist following the "big bang" expansion of the universe from an original fireball.—
V. L. Ginzburg
compare big crunch, big rip
V. L. GinzburgExamples of big bang in a Sentence
Recent Examples on the Web
Even if human life is just a result of a big bang, ascendance from a primordial swamp, and billions of years of evolution, doesn’t nature know better?
—Eleanor Pringle, Fortune, 20 June 2024
Several users described hearing a big bang shortly after takeoff.
—Kira Caspers, The Arizona Republic, 7 June 2024
Or so much that the expansion will eventually reverse itself in a kind of about-face big bang?
—Richard Panek, Scientific American, 1 Dec. 2023
Lightweight Packable Backpack wins big points for its durability and organization, giving travelers a big bang for their buck.
—Katherine Alex Beaven, Travel + Leisure, 27 Mar. 2024
See all Example Sentences for big bang 
Eleanor Pringle, Fortune, 20 June 2024
Several users described hearing a big bang shortly after takeoff.
—Kira Caspers, The Arizona Republic, 7 June 2024
Or so much that the expansion will eventually reverse itself in a kind of about-face big bang?
—Richard Panek, Scientific American, 1 Dec. 2023
Lightweight Packable Backpack wins big points for its durability and organization, giving travelers a big bang for their buck.
—Katherine Alex Beaven, Travel + Leisure, 27 Mar. 2024
See all Example Sentences for big bang
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'big bang.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Big bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/big%20bang. Accessed 2 Jul. 2024.
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