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.
Acral melanoma, in particular, is a subset of melanoma that grows on the palms and soles. Caroline C. Boyle, USA TODAY, 22 Feb. 2025 Naturally the focus on the high-cost rule subsets should not distract policymakers and analysts from the remaining bulk of rules in the annual pipeline of over 3,000. Clyde Wayne Crews Jr., Forbes, 19 Feb. 2025 Eliminating hallucinations for a subset of answers is also super important. Ayesha Javed, TIME, 16 Feb. 2025 Machine learning Machine learning is a subset of AI that teaches a computer to analyze datasets and identify patterns. Judy Lagrou, CNBC, 12 Feb. 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 3 Mar. 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

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