This is the 3454th most frequent German word.
kinderfest
A "kinderfest" is a children's festival.
In this sentence, 'kinderfest' refers to a literal children's festival, often an event organized for children with games and activities.
Wir gehen heute Nachmittag zu einem Kinderfest.
We are going to a children's festival this afternoon.
Here, 'kinderfest' is used as the name of an event to indicate a communal celebration specifically for children.
Das Kinderfest in der Stadt zieht jedes Jahr viele Familien an.
The children's festival in the town attracts many families every year.
In this context, 'kinderfest' describes a place or occasion that is characterized by activities and offerings appealing to children.