(business) An interdisciplinary concept used to create and validate a practiced logistical plan for how an organisation will recover and restore interrupted critical functions within a predetermined time after a disaster or extended disruption.

(idiomatic) To commit oneself to a task or activity that is employment-related or that requires serious effort or concentration.

(idiomatic) A matter that someone is not entitled to be involved in or informed about.

The last item on the agenda for a meeting, when any matter not already dealt with may be raised. Abbreviations: a.o.b., AOB.

(idiomatic, dated) To treat someone harshly or in a wrongful manner, such as by abusing, deceiving, or manipulating. / (idiomatic, dated) To harangue, criticize vigorously, berate, or ridicule someone.

(idiomatic, euphemistic) To defecate or urinate. / (dated) To ruin somebody.

Alternative form of mind one's own business

(US, marketing) The Saturday after Thanksgiving, promoted as a day for shopping at local small businesses

plural of central business district

To undertake to accomplish something or see it done.