This is the 13237th most frequent German word.
aufräumen
To tidy up or clean up.
Here, "aufräumen" is used to describe the act of organizing and cleaning up a personal space, applied directly to a specific location, "das Zimmer" (the room).
Ich muss mein Zimmer aufräumen.
I need to tidy up my room.
In this case, "aufräumen" refers to putting items back in order, emphasizing the importance of gathering and storing tools after use.
Es ist wichtig, die Werkzeuge nach der Arbeit aufzuräumen.
It is important to tidy up the tools after work.
"Aufräumen" here is referring to the collective effort of cleaning or restoring order to a larger shared space, in this case, "das Spielfeld" (the field).