Definition of group

  1. group Noun A number of things or persons being in some relation to one another.
  2. group Noun A set with an associative binary operation, under which there exists an identity element, and such that each element has an inverse.
  3. group Noun A (usually small) group of people who perform music together.
  4. group Noun A small number (up to about fifty) of galaxies that are near each other.
  5. group Noun A column in the periodic table of chemical elements.
  6. group Noun A functional entity consisting of certain atoms whose presence provides a certain property to a molecule, such as the methyl group.
  7. group Noun A subset of a culture or of a society.
  8. group Noun An air force formation.
  9. group Noun A collection of formations or rock strata.
  10. group Noun In the Unix operating system, a number of users with same rights with respect to accession, modification, and execution of files, computers and peripherals.
  11. group Noun An element of an espresso machine from which hot water pours into the portafilter.
  12. group Verb To put together to form a group.
  13. group Verb To come together to form a group.
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