About: A concrete name is a name which stands for a thing; an abstract name which stands for an attribute of a thing. […] A practice, however, has grown up in more modern times, which, if not introduced by Locke, has gained currency from his example, of applying the expression "abstract name" to all names which are the result of abstraction and generalization, and consequently to all general names, instead of confining it to the names of attributes.       Sponge   NotDistinct   Permalink