The term "copy cat" is often used to refer to someone who imitates or copies the actions of another person. However, there are several other synonyms that can be used to describe this behavior. One such synonym is "copycat," which is derived from the original term but is spelled as a single word. Other synonyms include "imitator," "mimic," "echo," "parrot," and "ape." These words all describe someone who is copying someone else's behavior or actions in a negative or mocking manner. It is important to note that while imitating others can sometimes be harmless, it can also be seen as unoriginal or disrespectful.