(verb) to put firm boundaries on the period that will be spent on a certain task, with the implication that the necessary work can be finished within this allotment or that schedule adherence is more critical than completion, as in: “Bill, don’t work too long on that model, you need to timebox it and move on”; the concept is found in various formal project management methodologies that seek to manage schedules and prevent the user from getting bogged down in one activity to the detriment of the larger initiative; in the generic business context the term is often used for work of a lower priority