Full Idea
The notion of an 'object' first introduced by Frege is much broader than that of most comparable ordinary uses of 'object', and is now fairly standard and familiar.
Gist of Idea
The modern Fregean use of the term 'object' is much broader than the ordinary usage
Source
Bob Hale (Abstract Objects [1987], Ch.1)
Book Reference
Hale,Bob: 'Abstract Objects' [Blackwell 1987], p.3
A Reaction
This makes it very difficult to get to grips with the metaphysical issues involved, since the ontological claims disappear into a mist of semantic vagueness.