• synonyms


See more synonyms for subset on Thesaurus.com
  1. a set that is a part of a larger set.
  2. Mathematics. a set consisting of elements of a given set that can be the same as the given set or smaller.
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Origin of subset

First recorded in 1900–05; sub- + set
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for subset

subdivision, member, batch, group, division, portion, share, cut, ration, part, section, fragment

Examples from the Web for subset

Contemporary Examples of subset

Historical Examples of subset

  • A subset of the Sun Tzu example is the view that war is deception.

    Shock and Awe

    Harlan K. Ullman

British Dictionary definitions for subset


  1. maths
    1. a set the members of which are all members of some given class: A is a subset of B is usually written A⊆B
    2. proper subsetone that is strictly contained within a larger class and excludes some of its membersSymbol: A⊂B
  2. a set within a larger set
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for subset


"subordinate set," 1902, from sub- + set (n.1).

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Online Etymology Dictionary, © 2010 Douglas Harper

subset in Science


  1. A set whose members are all contained in another set. The set of positive integers, for example, is a subset of the set of integers.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.