The noun business has 9 senses (first 9 from tagged texts)
1. (1268) business, concern, business concern, business organization, business organisation -- (a commercial or industrial enterprise and the people who constitute it; "he bought his brother's business"; "a small mom-and-pop business"; "a racially integrated business concern")
2. (291) commercial enterprise, business enterprise, business -- (the activity of providing goods and services involving financial and commercial and industrial aspects; "computers are now widely used in business")
3. (177) business, business sector -- (business concerns collectively; "Government and business could not agree")
4. (122) business -- (the volume of commercial activity; "business is good today"; "show me where the business was today")
5. (63) business -- (a rightful concern or responsibility; "it's none of your business"; "mind your own business")
6. (33) occupation, business, job, line of work, line -- (the principal activity in your life that you do to earn money; "he's not in my line of business")
7. (13) business -- (an immediate objective; "gossip was the main business of the evening")
8. (3) business, stage business, byplay -- (incidental activity performed by an actor for dramatic effect; "his business with the cane was hilarious")
9. (1) clientele, patronage, business -- (customers collectively; "they have an upper class clientele")