Count off is the process of calling out numbers to determine the order in which individuals or groups will perform a task. Synonyms for count off include tally, reckon, enumerate, list, number, and mark. In military situations, count off may also be known as roll call, which further emphasizes the importance of knowing who is present and accounted for. Additionally, in certain sports or games, teams may utilize a similar process by calling out numbers to determine player positions or batting order. No matter the context, count off remains a useful tool for organizing and assigning tasks in a clear and efficient manner.