This is the 8085th most frequent Spanish word.
niña
Girl.
In this sentence, 'niña' refers to a young female child, indicating her gender identity and approximate age.
La niña juega en el parque.
The girl plays in the park.
Here, 'niña' is used to describe the speaker's younger self when she was a child.
Cuando era niña, me gustaba leer cuentos.
When I was a girl, I used to like reading stories.
In this context, 'niña' is a role or character portrayed by someone in a performance.