subset

noun

sub·​set ˈsəb-ˌset How to pronounce subset (audio)
1
: a set each of whose elements is an element of an inclusive set
2
: division, portion
a subset of our community

Examples of subset in a Sentence

The set {1,2,3} is a subset of the set {1,2,3,4,5}. Only a small subset of the patients in the study experienced these side effects.
Recent Examples on the Web
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.
Retaliatory export controls Beijing earlier this month imposed export controls on rare earth elements — a subset of critical minerals —in retaliation for President Donald Trump’s decision to hike tariffs on goods made in China. Spencer Kimball, CNBC, 24 Apr. 2025 Last year’s election results offered clues about voters’ focus on health policy as a subset of their rising economic angst, according to a KFF assessment of the role those issues played in Trump’s victory. Alexis Simendinger, The Hill, 21 Apr. 2025 However, it's only meant for a subset of COPD patients whose symptoms are triggered by allergies, Mannino said. Fran Kritz, Verywell Health, 18 Apr. 2025 Discretionary spending patterns, fashion trends, technology, brand, and media preferences are assessed through surveying a geographically diverse subset of high schools across the U.S. Stephanie Gallman Jordan, Southern Living, 17 Apr. 2025 See All Example Sentences for subset

Word History

First Known Use

1881, in the meaning defined at sense 1

Time Traveler
The first known use of subset was in 1881

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Cite this Entry

“Subset.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subset. Accessed 29 Apr. 2025.

Kids Definition

subset

noun
sub·​set ˈsəb-ˌset How to pronounce subset (audio)
: a mathematical set that is a part of another mathematical set
the set of even numbers is a subset of the set of all numbers

More from Merriam-Webster on subset

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