The term 'Calls it a day' is an idiom used to describe the end of a workday or the end of a task. It can be used in a variety of contexts, and is often used to indicate that someone has finished their work for the day. The crossword solutions for this term are STOPS (5 letters), ENDS (4 letters), QUITS (5 letters), RETIRES (7 letters), TURNSIN (7 letters), and KNOCKSOFF (9 letters). All of these words can be used to describe the act of ending something, whether it be a job, a task, or a day.