This is the 3054th most frequent Russian word.
зоопарк
Zoo.
In this sentence, "зоопарк" is used as the name of a place—the zoo.
Сегодня я иду в зоопарк.
Today, I am going to the zoo.
Here, "зоопарк" refers to the condition or description of the zoo as a location.
Зоопарк был очень красивым и ухоженным.
The zoo was very beautiful and well-maintained.
In this context, "зоопарк" is used to describe its function as a place where children can enjoy observing wildlife.