Here are some examples:
* Una casa abandonada: An abandoned house.
* Una mujer abandonada por su esposo: A woman abandoned by her husband.
* Un perro abandonado en la calle: A dog abandoned on the street.
It can also have a more figurative meaning, like feeling abandoned or neglected.
For example:
* Me siento abandonada por mis amigos: I feel abandoned by my friends.
Remember, "abandonada" is the feminine singular form of the adjective "abandonado."