What is Imitating?

Imitating definition and meaning on Dictionary terms:
verb (used with object), imA.iA.tatA.ed,
to follow or endeavor to follow as a model or example: to imitate an author’s style; to imitate an older brother.
to mimic; impersonate: The students imitated the teacher behind her back.
to make a copy of; reproduce closely.
to have or assume the appearance of; simulate; resemble.