To introduce.
The opening sequence at beginning of a film, television program, etc.
An introduction.
A small demo produced to promote one's demogroup or for a competition.
To give a preface to.
To introduce or make a comment before (the main point).
An introduction, or series of preliminary remarks.
A title or epithet.
The beginning or introductory portion that comes before the main text of a document or book.
The prelude or introduction to the canon of the Mass.