The Vietnamese word "phát đoan" is an old or formal term that means "begin" or "to commence." It's often used to indicate the start of an event, process, or period.
In a more advanced context, "phát đoan" can be used to refer to the start of something significant, like a project, a movement, or a new era. For example: - "Phát đoan một thời kỳ mới trong lịch sử."
(The beginning of a new era in history.)
While "phát đoan" primarily means "begin," it can also imply the idea of initiating something important or noteworthy.