There are several synonyms that can be used for the phrase "fun and games" which refers to activities that are enjoyable or amusing. One such synonym is "amusement," which describes activities or experiences that provide entertainment and enjoyment. Another synonym for "fun and games" is "recreation," which involves engaging in activities that add relaxation and mental or physical stimulation. The term "entertainment" can also be used, which generally refers to anything that stimulates and engages people's interest, such as music, movies, and theater. Lastly, "playfulness" is another synonym that can be used, which indicates a nature or quality of being light-hearted or happy.