La sala está completamente vacía.

The room is completely empty.

Breakdown of La sala está completamente vacía.

• estar: to be
• la sala: the room
• vacío: empty
• completamente: completely

Questions & Answers about La sala está completamente vacía.

Why is it está and not es?

Because vacía describes a state or condition, not an essential characteristic.

In Spanish, estar is commonly used for things like:

• location
• temporary conditions
• resulting states

So La sala está completamente vacía means the room is empty right now / in this situation.

Using ser here would sound unnatural in normal Spanish.

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Why does vacía end in -a?

Because vacía is an adjective, and it has to agree with sala, which is a feminine singular noun.

Agreement here is:

• la sala → feminine singular
• vacía → feminine singular

Compare:

• El salón está vacío.
• La sala está vacía.
• Las salas están vacías.

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What does sala mean exactly?