What does "big business" mean?

Large, for-profit corporations collectively, understood as having significant economic, political, or social influence.

Big business

Common synonyms include: balance of trade, business, business dealings, commerce, commercial affairs, commercial relations.

noun

noun ·Rare ·Advanced level

Noun

1
Large, for-profit corporations collectively, understood as having significant economic, political, or social influence. capitalized, sometimes, uncountable
"The man in the sandwich board was railing against big business and big government."
2
Alternative form of big business. alt-of, alternative, uncountable
3
commercial enterprises organized and financed on a scale large enough to influence social and political policies wordnet
4
A large and vital economic sector. uncountable
"In those days, cotton mills were big business around here, and so was tanning of hides."

"The man in the sandwich board was railing against big business and big government."