A structure of concepts or entities within a domain, organized by relationships; a system model.
A logical system involving theory of classes, developed by Stanislaw Lesniewski (1886-1939).
The theory of a particular philosopher or school of thought concerning the fundamental types of entity in the universe.
The branch of metaphysics that addresses the nature or essential characteristics of being and of things that exist; the study of being qua being.
In a subject view, or a world view, the set of conceptual or material things or classes of things that are recognised as existing, or are assumed to exist in context, and their interrelations; in a body of theory, the ontology comprises the domain of discourse, the things that are defined as existing, together with whatever emerges from their mutual implications.
A collection of organized things; a whole composed of relationships among its members.
A set of equations involving the same variables, which are to be solved simultaneously.
A set of alters, or the multiple (“the individual with multiple personalities due to, for example, a dissociative personality disorder”) who contains them.
Preceded by the word the: the mainstream culture, controlled by the elites or government of a state, or a combination of them, seen as oppressive to the individual.
A set of staves linked by a brace that indicate instruments or sounds that are to be played simultaneously.
A planetary system; a set of planets orbiting a star or star system
A set of rules for a tabletop roleplaying game.
A comprehensive and logically organized set of propositions or philosophical beliefs.
A method or way of organizing or planning.
A set of hardware and software operating in a computer.
A set of body organs having a particular function.