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Phonetics
/ˈpɹɛfəs/
noun
The beginning or introductory portion that comes before the main text of a document or book.
Example: The book included a brief preface by a leading expert in the field.An introduction, or series of preliminary remarks.
The prelude or introduction to the canon of the Mass.
A title or epithet.
verb
To introduce or make a comment before (the main point).
Example: Let me preface this by saying that I don't know him that well.To give a preface to.
Example: to preface a book