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.
Smith is among a larger subset of young people with an affinity for heirloom design. Mary Grace Granados special Contributor, Dallas Morning News, 4 Feb. 2026 That's why a small subset of ad space for streaming-only commercials is gaining traction and granting smaller brands time during TV's biggest night of the year. Lillian Rizzo, CNBC, 4 Feb. 2026 The department only released a small subset of those files by that deadline. Caroline Neal, Louisville Courier Journal, 3 Feb. 2026 The early submission process was created by the state Legislature in 2019, as part of Senate Bill 330, to allow developers to apply with just a subset of project information while simultaneously freezing development standards. Jennifer Van Grove, San Diego Union-Tribune, 1 Feb. 2026 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 14 Feb. 2026.

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

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