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subset

/ˈsʌbˌsɛt/
noun

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

    "The set \lbrace a, b\rbrace is a both a subset and a proper subset of \lbrace a, b, c\rbrace while the set \lbrace a, b, c\rbrace is a subset of \lbrace a, b, c\rbrace but not a proper subset of \lbrace a, b, c\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."

Synonymssubclass
Antonymssuperclass, superset
verb

  1. To take a subset of.

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

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