"No, it's just business. And business is business.""
Business was the activity of creating income by producing, or buying and selling goods and services. One who conducted business was known as a businessman.
Shortly after the establishment of Deep Space 9 and the discovery of the Bajoran wormhole in 2369, Odo observed that "Business is good, Quark. You're almost making an honest living." (DS9: "A Man Alone")