Etymology: order of business (predetermined sequence of matters to be dealt with by an assembly)
Date: circa 1890
: a matter which must be dealt with : task
the budget was the first order of business at the committee meeting
ORDER OF BUSINESS
Meaning of ORDER OF BUSINESS in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003