A specific commercial enterprise or establishment.
A person's occupation, work, or trade.
Commercial, industrial, or professional activity.
The volume or amount of commercial trade.
One's dealings; patronage.
Private commercial interests taken collectively.
The management of commercial enterprises, or the study of such management.
A particular situation or activity.
Any activity or objective needing to be dealt with; especially, one of a financial or legal matter.
Something involving one personally.
Matters that come before a body for deliberation or action.
Business class, the class of seating provided by airlines between first class and coach.
Action carried out with a prop or piece of clothing, usually away from the focus of the scene.
The collective noun for a group of ferrets.
(slang) Something very good; top quality. (possibly from "the bee's knees")
(slang) The act of defecation, or the excrement itself, particularly that of a non-human animal.
(slang) Disruptive shenanigans.
matters (e.g sorry business = a funeral)

Of, to, pertaining to, or used for purposes of conducting trade, commerce, governance, advocacy or other professional purposes.
Professional, businesslike, having concern for good business practice.
Supporting business, conducive to the conduct of business.