The phrase "big business" refers to large companies or corporations that have a significant impact on the economy and employ a large number of people. Full definition
How do you think the evangelicals ever got into the party of big business in the first place. (religion.blogs.cnn.com)
The same thing goes for big business in advertising in television. (fourcrossmarketing.com)
The parts aren't pretty, but eliminating new types of annoying sounds in electric and autonomous vehicles promises to become big business for new soft trim supplier. (wardsauto.com)