TO DO' (5 letters) The term 'Task List' can be summarized by two crossword solutions: 'AGENDA' (6 letters) and 'TO DO' (5 letters). An AGENDA is a list of tasks or activities TO be done, while 'TO DO' is a phrase used TO describe a list of tasks that need TO be completed. Task Lists are often used in business settings TO keep track of tasks that need TO be done, as well as TO plan out future tasks. They can also be used in personal settings TO help organize and prioritize tasks.