—n. 1. a preliminary statement in a book by the book's author or editor, setting forth its purpose and scope, expressing acknowledgment of assistance from others, etc.
2. an introductory part, as of a speech.
3. something preliminary or introductory: The meeting was the preface to an alliance. 4. Eccles.a prayer of thanksgiving, the introduction to the canon of the Mass, ending with the Sanctus.
—v.t. 1. to provide with or introduce by a preface.
2. to serve as a preface to.