Taxonomy
classification of things or concepts, as well as to the principles underlying such a classification, categorization is based on discrete sets, different from meronymy which is dealing with the classification of parts of a whole
Computer Science Ontology
Taxonomy of the Gastropoda
biological classification
Structure of Observed Learning Outcome
Celestial Emporium of Benevolent Knowledge's Taxonomy
genetic classification
types of chocolate
Fundamental human needs
Classification of Instructional Programs
Bartle Test
numerical taxonomy