n.

1. 工作，职业[C]
   He is a bus driver by occupation.

   他的职业是公车司机。

2. 消遣；日常事务[C][U]
   He was bored for lack of occupation.

   他因无所事事而感到厌烦。

3. 占领，占据；占领时期[U]
   The Japanese occupation of Taiwan lasted fifty-one years.

   日本占领台湾达五十一年之久。

4. 占用；居住；占用（或居住）期
   No one is yet in occupation of the house.

   这所房子还没有人住进去。

n.

1. the action, state, or period of occupying or being occupied.
2. a job or profession.
3. a way of spending time.