1. The condition of being vacant or unoccupied.

2. An empty or unoccupied space.

3. A position, office, or place of accommodation that is unfilled or unoccupied.

4. Emptiness of mind; inanity.

5. A crystal defect caused by the absence of an atom, ion, or molecule in a crystal lattice.

6. Archaic A period of leisure; idleness.