The term can imply the task is large or complex, needing significant effort or time.

Project Scale

Often used in informal contexts to describe a task one may not be looking forward to.

Idiomatic Use

Refers to tasks often outside regular duties, like a special assignment or one-off project.

Used to discuss particular forms of employment, usually highlighting the nature or newness of the work.

May convey a sense of pride or value in someone's work, regardless of its status or pay.