The term 'Called it a Day' is an idiom which means to stop working or to end something. It is often used when someone has worked hard and wants to take a break or when they have reached the end of their task. The crossword solutions for this term are RETIRED (7 letters) and ENDED (5 letters). RETIRED implies that someone has stopped working, while ENDED implies that something has come to a conclusion. Both words can be used to describe the phrase 'Called it a Day'.