This is the 7613th most frequent Spanish word.
kid
The Spanish word for "kid" (informal for child) is "niño" or "niña."
Here, 'kid' refers to a young child, specifically a pre-adolescent person.
El niño estaba jugando en el parque.
The kid was playing in the park.
In this instance, 'kid' describes a young goat, which is a common alternate meaning.
El cabrito saltaba alegremente en el prado.
The kid was happily jumping in the meadow.
In this context, 'kid' is used as a colloquial term for a young person or youth.