preface
🇺🇸
/ˈprefəs/
🇬🇧
/ˈprefəs/
an introduction at the start of a book that explains the author's purpose
The author explains her goals in the preface to the book.
to add an introduction to a book or writing
She wrote a preface to introduce her new novel.
to say something before speaking or answering
He began with a preface before answering the question.