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.
Only 149,714 of them were high-propensity applications, the subset statistically likely to hire an employee. — Boaz Sobrado, Forbes.com, 7 Aug. 2026 Although many individuals wanted to move up during the uncertain years of succession, only a subset of high-level political elites had the necessary informal ties and formal authority to be a part of the selectorate. — Julian G. Waller, Foreign Affairs, 7 Aug. 2026 Telsey also noted that the first quarter decline was slightly below internal expectations due in part to wholesale timing and a weaker performance from a subset of doors within Vans’ store fleet. — Vicki M. Young, Footwear News, 31 July 2026 College football recruiting has gone from a niche subset of the sport to something that has taken on a life of its own. — Austin Perry Outkick, FOXNews.com, 30 July 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

Rhymes for subset

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Browse Nearby Words

subsessile
subset
subsexual
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Cite this Entry

“Subset.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subset. Accessed 12 Aug. 2026.

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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

Nglish: Translation of subset for Spanish Speakers

Britannica.com: Encyclopedia article about subset

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