part one
First installment label
Part one is the first section or installment of something divided into segments: Part one of the documentary covers her early years.
The phrase marks the beginning of a sequence, whether in books, films, podcasts, or any structured presentation.
It implies continuation—where there's a part one, parts two and onward typically follow.
- sectionDistinct divided part
- first chapterBook's introductory segment
- chapterDivision of a book
- beginningInitial stage of something
- episodeSerialized content unit
segment · introduction · opening · opening act · first · volume · installment · act · prelude · component · piece · portion · fragment · division · first half · half · sequel · to be continued