Entity

In metaphysics, entities are those constituents of the world—they are the things that exist. Entity is an axiomatic concept, it is therefore not subject to any definition beyond an ostensive one, that is by pointing to examples:

In this case, one points to solid things with a perceivable shape, such as a rock, a person, or a table. By extension from this primary sense, “entity” may be used in various contexts to denote a vast array of existents, such as the solar system, General Motors, or the smallest subatomic particle. But all “entities” like these are reducible ultimately to combinations, components, or distinguishable aspects of “entities” in the primary sense.¹