Vacancy (noun)

1. An available job or room for rent.
2. An unoccupied space or room.

Origin:

Late middle english: from old french vacance, from latin vacare "be unoccupied", from vacuus "empty".

Examples:

1. There is a vacancy for a software engineer at the company.
2. The hotel has a vacancy for tonight.
3. The apartment building has a high vacancy rate.
4. The vacancy on the board was filled by a new member.
5. The vacancy in the heart of the city has attracted many businesses.