vacancy
/ˈveɪkənsɪ; `vekənsɪ/ n
1 [C] unoccupied accommodation （未被占用的）空余住处
No vacancies, eg on a hotel sign. 客满（如旅店告示牌的字样）.
2 [C] unfilled position or post 空处; 空位; 空职; 空缺
We have vacancies for typists/in the typing pool. 我们缺少打字员[我们的打字组缺员].
3 [U] lack of ideas or intelligence; emptiness of mind 无主意或智慧; 头脑空虚
the vacancy of his stare, expression 他那茫然若失的目光、 表情.