Priority controller is a term that refers to a device or system that determines the order of tasks or activities based on their level of importance. There are several synonyms to this word, which include: task manager, scheduler, prioritizer, organizer, and tracker. A task manager is a software that helps manage tasks, whereas a scheduler is a tool that helps in scheduling tasks for future dates. A prioritizer is a system that assigns priority levels to various tasks based on their importance, while an organizer is a device or software that helps in organizing and sorting tasks effectively. A tracker is a system that monitors and tracks the progress of various tasks and their associated priorities. All these synonyms ultimately mean the same thing, which is to manage, schedule, and prioritize tasks effectively.