Impersonating is the act of pretending to be someone else. The term can be broken down into several related words, such as ALA (3 letters), which stands for 'as if looking alike'; ACTING (6 letters), which is the art of performing a role; IMITATING (9 letters), which is the act of COPYING another's behavior; COPYING (7 letters), which is the act of reproducing something exactly; MIMICKING (9 letters), which is the act of IMITATING another's actions; and DOING (5 letters), which is the act of performing an action. All of these words are related to the concept of impersonating, and together they provide a comprehensive definition of the term.