subset

noun

sub·​set ˈsəb-ˌset 

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

But a subset of patients can experience major depression during summer months because of the load heat puts on the brain. — Mark Prussin, CBS News, 29 June 2026

Applying frosting is one of the few things that cannot be said to be a subset of Haaland’s métier; after tossing his balky piping bag aside in frustration, the Norseman issued an expletive that was deemed bleep-worthy by Fox’s Standards & Practices crew. — Anthony Crupi, Sportico.com, 26 June 2026

And a subset of them don’t stop there. — Paul Knoepfler, STAT, 24 June 2026

The platform where Woah Vicky really shines is X, where her hyper-confessional, typo-laden posts repeatedly fascinate a certain subset of the internet. — Chris Murphy, Vanity Fair, 23 June 2026

Word History

First Known Use

1881, in the meaning defined at sense 1

Rhymes for subset

• abet
• asset
• baguette
• banquette
• barbette
• beget
• beset
• binet
• briquette
• brunet
• brunette
• burette

Kids Definition

subset

noun

sub·​set ˈsəb-ˌset 

: 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