This is the 8876th most frequent Japanese word.
樹下
"樹下" means "beneath a tree" or "under a tree."
Here, '樹下' refers to the area directly under the tree, highlighting the location where the activity takes place.
樹下で読書をするのが好きです。
I like reading under the tree.
In this sentence, '樹下' is used to specify the origin of the breeze, emphasizing the surroundings provided by the tree.
樹下の風はとても心地よいです。
The breeze under the tree is very pleasant.
The word '樹下' describes the setting where the children are engaging in their activity, indicating the shaded area under the tree.