Meaning of VACANCY in English
[noun] [C]A vacancy is a space or place which is available to be used.We wanted to book a hotel room in July but there were no vacancies.The dentist can't see you today but she has a vacancy tomorrow morning.There is a vacancy (= job) for a shop assistant on Saturdays.There are still some vacancies for students in science and engineering courses, but those in the arts and humanities have been filled.
Cambridge English vocab. Кембриджский английский словарь. 2012