They stopped talking and playing together.
Meaning: This means that the cat and mouse were no longer on good terms and didn't interact with each other.
Choice of Words: Stopped means to end or cease doing something. Talking means communicating with words. Playing means engaging in an activity for enjoyment. When you put them together, "stopped talking and playing together" means that the cat and mouse no longer communicated or engaged in enjoyable activities together.
Alternative Expressions
Related Expressions