1. 责任：incult 粗俗的 | incumbency 责任 | incur 招惹

2. 在职期间：incumbency 在职 | incumbency 在职期间 | incumbent 领圣职的俸禄的牧师

3. 在职：incult 未开垦的 | incumbency 在职 | incumbency 在职期间

4. 义务：incumbency 责任 | incumbency 义务 | incumbent 负有责任的

noun

1. the office of an incumbent

2. a duty that is incumbent upon you

3. the term during which some position is held

Synonym: tenureterm of office