In object-oriented programming, a class is a construct that is used to define a distinct type. The class is instantiated into instances of itself – referred to as class instances, class objects, instance objects or simply objects. A class defines constituent members that enable its instances to have state and behavior. Data field members enable a class instance to maintain state. Other kinds of members, especially methods, enable the behavior of class instances. Classes therefore define the type of their instances.

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  1. A group, collection, category or set sharing characteristics or attributes.
  2. A social grouping, based on job, wealth, etc. In Britain, society is commonly split into three main classes; upper class, middle class and working class.
  3. The division of society into classes.
  4. Admirable behavior; elegance.
  5. A group of students in a regularly scheduled meeting with a teacher.
  6. A series of classes covering a single subject.
  7. A group of students who commenced or completed their education during a particular year. A school class.
  8. A category of seats in an airplane, train or other means of mass transportation.
  9. A rank in the classification of organisms, below phylum and above order; a taxon of that rank.
  10. Best of its kind.
  11. A collection of sets definable by a shared property.
  12. A group of people subject to be conscripted in the same military draft, or more narrowly those persons actually conscripted in a particular draft.
  13. A set of objects having the same behavior (but typically differing in state), or a template defining such a set.
  14. One of the sections into which a Methodist church or congregation is divided, supervised by a class leader.


  1. To assign to a class; to classify.
  2. To be grouped or classed.
    — Tatham.
  3. To divide into classes, as students; to form into, or place in, a class or classes.


  1. great; fabulous

The above text is a snippet from Wiktionary: class
and as such is available under the Creative Commons Attribution/Share-Alike License.

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