order of the day

noun

1. the agenda for an assembly, meeting, group, or organization.
2. the activity or feature of primary importance: Good cheer and celebrations will be the order of the day.

noun

1. the general directive of a commander in chief or the specific instructions of a commanding officer
2. informal the prescribed or only thing offered or availableprunes were the order of the day
3. (in Parliament and similar legislatures) any item of public business ordered to be considered on a specific day
4. an agenda or programme