This is the 3413th most frequent Spanish word.
divertido
Fun.
In this sentence, 'divertido' is used as an adjective to describe the amusement park as a source of enjoyment.
El parque de diversiones es muy divertido.
The amusement park is very fun.
Here, 'divertido' describes the jokes, indicating that they are humorous and entertaining.
Siempre cuentas chistes muy divertidos.
You always tell very funny jokes.
In this case, 'divertido' reflects a perception or feeling of something being amusing or enjoyable.