vacancy
n.
1570s, "a vacating;" c.1600, "state of being vacant," from Late Latin vacantia, from Latin vacans "empty, unoccupied," present participle of vacare "be empty" (see vain). From 1690s as "a vacant office or post;" meaning "available room at a hotel" is recorded from 1953. Related: Vacance (1530s); vacancies.
〔李〕[vac;-ancyn.] n.空白； 空地； 空虚； 清闲； 空缺 ←vac,van (L vacare,vanus)=to be empty 空
〔蒋〕[vac空，-ancy表示情况，状态] 空，空白，空处，空虚