This is the 4634th most frequent German word.
treiben
"To drive, propel, drift, urge, or engage in an activity."
In this sentence, 'treiben' refers to the act of engaging in an activity or practice.
Die Kinder treiben auf der Wiese Sport.
The children are doing sports on the meadow.
Here, 'treiben' describes the motion of drifting or being moved by external forces, such as water currents.
Das Boot treibt langsam den Fluss hinunter.
The boat is drifting slowly down the river.
In this example, 'treiben' is used colloquially to mean 'doing' or 'engaging in an activity'.