Added 9 October 2026 subset /ˈsʌbˌsɛt/ noun Categories: SocietyUncommon Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about subset at Wordnik → Where our words come from → 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. 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. verb To take a subset of. To extract only the portions of (a font) that are needed to display a particular document. Related Words: subnetsubsamplesubnetworkcomponentsubsectorsubsystemsubclasssubcategorysubcomponentfractionpartsubdivision Back to today's word