Tu/Tus/Su/Sus/...

Possessive adjectives are words that are used in place of articles to indicate who or what something belongs to.

In Spanish there are different forms of possessive adjectives, depending on whether the noun is masculine or feminine, or singular or plural.

A special feature in Spanish is the third person. In Spanish there is no distinction based on gender, only based on the number. Su and sus can be, she, be, yours or mean hers, depending on the context.

For example, su cama can mean his bed, her bed, his bed (e.g. that of the dog), or your bed. Therefore, the context is always decisive, e.g. in: Es el libro de ustedes. Es su libro.