Definitions from Wiktionary ( )

▸ noun:  (countable) A group, collection, category or set sharing characteristics or attributes.
▸ noun:  (sociology, countable) 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.
▸ noun:  (uncountable) The division of society into classes.
▸ noun:  (uncountable) Admirable behavior; elegance.
▸ noun:  (education, countable and uncountable) A group of students in a regularly scheduled meeting with a teacher.
▸ noun:  A series of lessons covering a single subject.
▸ noun:  (countable) A group of students who commenced or completed their education during a particular year. A school class.
▸ noun:  (countable) A category of seats in an airplane, train or other means of mass transportation.
▸ noun:  (taxonomy, countable) A rank in the classification of organisms, below phylum and above order; a taxon of that rank.
▸ noun:  Best of its kind.
▸ noun:  (statistics) A grouping of data values in an interval, often used for computation of a frequency distribution.
▸ noun:  (set theory) A collection of sets definable by a shared property, especially one which is not itself a set (in which case the class is called proper).
▸ noun:  (military) A group of people subject to be conscripted in the same military draft, or more narrowly those persons actually conscripted in a particular draft.
▸ noun:  (object-oriented programming, countable) A set of objects having the same behavior (but typically differing in state), or a template defining such a set in terms of its common properties, functions, etc.
▸ noun:  One of the sections into which a Methodist church or congregation is divided, supervised by a class leader.
▸ verb:  (transitive) To assign to a class; to classify.
▸ verb:  (intransitive) To be grouped or classed.
▸ verb:  (transitive) To divide into classes, as students; to form into, or place in, a class or classes.
▸ adjective:  (Ireland, Geordie, slang) great; fabulous
▸ noun:  (astronomy) Abbreviation of Cosmology Large Angular Scale Surveyor.
▸ noun:  (astronomy) Abbreviation of Cosmology Large Angular Scale Survey.

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