Full Idea
The Fregean view is that the essence of a concept is given by the fundamental condition for something to be its reference.
Gist of Idea
Fregean concepts have their essence fixed by reference-conditions
Source
Christopher Peacocke (Truly Understood [2008], 2.1)
Book Reference
Peacocke,Christopher: 'Truly Understood' [OUP 2008], p.54
A Reaction
Peacocke is a supporter of the Fregean view. How does this work for concepts of odd creatures in a fantasy novel? Or for mistaken or confused concepts? For Burge's 'arthritis in my thigh'? I don't reject the Fregean view.