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subset

noun

  1. set A is a subset of a set B, or equivalently B is a superset of A, if A is "contained" inside B, that is, all elements of A are also elements of B. A and B may coincide
L227908 on Wikidata ↗

Wiktionary

Pronunciation: /ˈsʌbˌsɛt/

noun

Etymology: Etymology tree Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub-der. English sub- English set English subset From sub- + set.

  1. A set A such that every element of A is also an element of S.

    “The set of integers is a subset of the set of real numbers.”

    “The set #92;lbracea,b#92;rbrace is a both a subset and a proper subset of #92;lbracea,b,c#92;rbrace while the set #92;lbracea,b,c#92;rbrace is a subset of #92;lbracea,b,c#92;rbrace but not a proper subset of #92;lbracea,b,c#92;rbrace.”

  2. A group of things or people, all of which are in a specified larger group.

    “We asked a subset of the population of the town for their opinion.”

    “Interestingly, this [the core lexicon] is not all of the words of the language: It turns out that most of the words in a language from an industrialized culture come from narrow semantic domains, such that only a subset of speakers know them.”

verb

Etymology: Etymology tree Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub-der. English sub- English set English subset From sub- + set.

  1. To take a subset of.
  2. To extract only the portions of (a font) that are needed to display a particular document.