Let us say that anything we can talk about is an "entity", anything we can truly say about an entity is a "quiddity" (Latin quid "what"). Each quiddity is in turn an entity. So objects, concepts and names (terms) are entities and have quiddities. The properties (quiddities) of objects are represented by characteristics (quiddities) of  concepts, and these quiddities are concepts themselves. There are simple concepts and  complex "sets of concepts". Entities and quiddities can be regarded differently in different languages and disciplines; their ontological categorization depends on the respective epistemological point of view. Material objects usually represent themselves, names usually represent something else (objects via concepts), but both are part of the world outside the brain, where only individuals exist. However, names can also represent themselves and then their quiddities refer to their appearance (e.g. black letters) or function (e.g. noun), etc. Immaterial objects as "preconceptual" entities and concepts exist only within the brain. A concept, general or individual, is composed of a name concept and an object concept, which although stored in different parts of the brain (brain research) usually remain in contact with each other.