Farming is the sole occupation of the population; there are no other businesses or services.

He is one of the few sf authors to have made writing his sole occupation.

My mom, it's like her sole occupation at this point is losing weight.

But there are some whose sole occupation it is: like Teeplee.

From this day natural philosophy, and particularly chemistry, in the most comprehensive sense of the term, became nearly my sole occupation.

Of all fishermen only half fish as their sole occupation.

It does seem to me that my sole occupation on board ship is subject-changing.

"If that is your sole occupation don't you get a bit tired of it?"

Their sole occupation was also the manufacturing of shoes.

And more than half the lawmakers, who earn $47,000 a year, list the Legislature as their sole occupation.