What is the definition of preamble?

Answer 1

A introductory portion; an introduction or preface, as to a book, document, etc.; specifically, the introductory part of a statute, which states the reasons and intent of the law., To make a preamble to; to preface; to serve as a preamble.

Answer 2

The easy definition of a preamble is an introduction. Usually a preamble states the purpose and reasons for the ideas or points presented in the rest of the piece.