The firm's sole business from the early 1930's to 1979 was selling to institutional investors research on the stocks and bonds of public utilities.

Football has always been my family's sole business, albeit a passion as well, not a toy or a tax shelter.

The sole business of the new government, they say, will be to organize presidential elections.

"My sole business of late is to guard Elizabeth."

Why invest in a company whose sole business is a single restaurant on the Florida coast that seats only 242 people?

Water supply was its sole business until 1719.

Publication of the encyclopedia's volumes was the sole business conducted by the company during the project's lifetime.

Let not the Magician forget for a single second what is his one sole business.

A typical town of the era, Ruby was very small and its one general store was the sole business other than mining.

This place, which had been the sole remaining business of any size in the valley, stood vacant and seemed likely to remain so.