ˌbig ˈbusiness BrE AmE noun [uncountable]
1 . very large companies, considered as a powerful group with a lot of influence
2 . a product or type of activity that people spend a lot of money on:
Dieting has become big business.
ˌbig ˈbusiness BrE AmE noun [uncountable]
1 . very large companies, considered as a powerful group with a lot of influence
2 . a product or type of activity that people spend a lot of money on:
Dieting has become big business.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012