As a Noun:
1. An activity you do for which you are paid. English = work, job, employment, occupation.
3. Something that you need to do that requires some effort. English = work, task.
4. The useful thing that something or someone does or is intended to do. English = function.
As a Verb or Adjective:
1. To do an activity for which you get paid. English = work, (be) employed.
2. To expend effort to do something that must be done. English = work.