Edu:Category

Category

1. A division within a system of classification.
2. Any of several fundamental and distinct classes to which entities or concepts belong. Reference: Merriam-Webster Collegiate Dictionary 2004 v.3.1 electronic edition. www.merriam-webster.com/dictionary/category
3. A formal (which is to say, domain-neutral) universal, such as entity, continuant, or occurrent. [ Arp et al., 2015 ]
4. A property that is rigid but does not carry a specific identity criteria. [ Guarino, 1999 ]

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extension proposal (FL, 2018-05-15):

• add category as defined in philosophy, as "highest kind of genera", cf. https://plato.stanford.edu/entries/categories/
• add category as defined in (mathematical) category theory (e.g., a foundation of the Distributed Ontology Language), cf. https://plato.stanford.edu/entries/category-theory/