This is the 13144th most frequent German word.
angetreten
"Angetreten" means "started," "commenced," or "assembled," depending on context.
"Angetreten" is used here to mean "assumed" or "started in" (a formal position or function).
Der neue Präsident hat sein Amt heute angetreten.
The new president assumed office today.
"Angetreten" here implies "lined up or assembled" to begin a formal competition or match.
Die Athleten haben zu ihrem Wettkampf angetreten.
The athletes lined up for their match.
"Angetreten" in this context means "taken on," illustrating the beginning of engaging in a new task or challenge.