preface: Meaning and Definition of

pref•ace

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. a prayer of thanksgiving, the introduction to the canon of the Mass, ending with the Sanctus.

1. to provide with or introduce by a preface.
2. to serve as a preface to.