n.

1. 空；空白；空間[U]
   the stark vacancy of the arctic landscape

   北極景色的極端空白

2. 空處；空地；空房[C]
   There is a vacancy on the tenth floor.

   第十層樓上有一個空房間。

3. 空缺；空職；空額[C][（+for）]
   We have a vacancy for a computer programmer.

   我們有一個電腦程式設計師缺額。

4. （心靈的）空虛；失神，心不在焉[U]
   The vacancy of the boy's expression made his father doubt if he was listening.

   兒子毫無表情使父親懷疑他是否在專心聽。

n.

1. an unoccupied position or job.
2. an available room in a hotel, guest house, etc.
3. empty space.
4. lack of intelligence or understanding.