- one's work, occupation, or profession
- a special task, duty, or function
- rightful concern or responsibility: no one's business but his own
- a matter, affair, activity, etc.: the business of packing for a trip
- the buying and selling of commodities and services; commerce; trade
- a commercial or industrial establishment; store, factory, etc.
- the trade or patronage of customers
- commercial practice or policy
- a bit of action in a drama, as pouring a drink, intended to establish character, take up a pause in dialogue, etc.
ME bisinesse < OE bisignes: see busy & -ness