(~s)
1.
An ~ is a task or piece of work that you are given to do, especially as part of your job or studies.
The assessment for the course involves written ~s and practical tests.
N-COUNT
2.
You can refer to someone being given a particular task or job as their ~ to the task or job.
An Australian division scheduled for ~ to Greece was ordered to remain in Egypt.
N-UNCOUNT: oft N to n