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.
Fuller had recorded the video in the style of a University of Georgia football fan account, but only a small subset of perpetually online Dawgs stans got the joke. Tia Mitchell, AJC.com, 1 May 2026 But with its custom upgrades, Crayola appealed to a very niche subset of buyers. Byron Hurd, The Drive, 30 Apr. 2026 CarEdge also offers extended vehicle warranties through Fair Warranty and backed by AUL Corporation, a subset of Protective Asset Protection. Danny Smith, USA Today, 30 Apr. 2026 In this way, −1 becomes the smallest element of the subset of negative numbers. Quanta Magazine, 29 Apr. 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 5 May. 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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