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.
Another tax break that could apply to a subset of filers is the bigger cap on the federal deduction for state and local taxes, or SALT. Kate Dore, Cfp®, Ea, CNBC, 31 Oct. 2025 Today, search engines are a very small part of our referral traffic, and third-party agents are a very small subset of that. Meghan Hall, Sourcing Journal, 31 Oct. 2025 One of Pritam’s earliest works, it was published in 1950, before Partition literature became a critical subset of South Asian literature more generally. JSTOR Daily, 30 Oct. 2025 Ever since Prince Harry and Meghan Markle got married, there has been a subset of people who have been convinced that their differences would lead to divorce. Lizzie Lanuza, StyleCaster, 29 Oct. 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 Nov. 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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