An activity performed by a person, often on a habitual basis; something to be done; a piece or item of business; an occupation, a pursuit; a task…

Thing to be done, work (in contemplation); the task or duty of any time or person. Obsolete.

Work that has to be done; matters demanding attention. Formerly also as a count noun: a particular matter requiring attention; a piece of work, a job…

Something that a person needs to do; necessary business; a matter, a piece of business, a business engagement. Chiefly in plural: affairs, business.

A piece of work; a duty or allotted task; a school task or lesson to be prepared; (U.S.) a piece of schoolwork imposed as a punishment.

A task, a thing to be done; an operation, a procedure; a function to be fulfilled.