This is the 7052nd most frequent Dutch word.
arena
A large, open space or stadium used for sports, entertainment, or events.
The word "arena" is used here to refer to a large, typically outdoor venue where events, often sports or performances, are held.
De arena is gevuld met enthousiaste fans.
The arena is filled with enthusiastic fans.
In this context, "arena" is metaphorically used to describe the field or sphere of political action and discourse.
Hij trad de politieke arena binnen om verandering te brengen.
He entered the political arena to bring about change.
Here, "arena" is used to describe a historical amphitheater, specifically one where such events occurred in ancient times.