What does JOB mean?

noun

1. the principal activity in your life that you do to earn money“he's not in my line of business”
2. a specific piece of work required to be done as a duty or for a specific fee“estimates of the city's loss on that job ranged as high as a million dollars”
3. a workplace; as in the expression“on the job”
4. an object worked on; a result produced by working“he held the job in his left hand and worked on it with his right”
5. the responsibility to do something“it is their job to print the truth”
6. the performance of a piece of work“she did an outstanding job as Ophelia”
7. a damaging piece of work“dry rot did the job of destroying the barn”
8. a state of difficulty that needs to be resolved“she and her husband are having problems”