noun
vacancy
VAY-kun-see/ˈveɪkənsi/
An available place or position with no current occupant.
The hotel has one vacancy left for tonight.

Etymology
The pieces express a state of being empty. That abstract condition became the name for something unfilled, such as an office awaiting an occupant or a room available to a guest.
In context
Burlington where many people are likely to head has a rental vacancy rate of 1% this creates a scenario where people are forced to sleep unsheltered due to there being no other options available to them
More examples
- The school is advertising a vacancy for a math teacher.
- We keep checking for vacancies in that apartment building.
- Her resignation leaves a vacancy on the city council.