Impersonation
Imitation, Mimicry
noun, verbal noun
真似 is "impersonation." Actually, this word is too. It's also impersonation.
物真似 is very similar to 真似, but can be used in slightly different contexts. 真似 is used for general acts of mimicry or imitation, and can also be used to refer to the way someone does something. On the other hand, while 物真似 also describes acts of mimicry and imitation, it's additionally used in performance or entertainment contexts to refer to people who do impersonation acts.
The reading is 物 plus 真似 put together.
人の物真似
imitating someone, an impression of someone
先生の物真似
imitating a teacher, an impression of a teacher
声の物真似
mimicking someone's voice
芸能人の物真似
celebrity impersonation
物真似芸人
impressionist
物真似タレント
impressionist
物真似番組
T.V. show starring impersonator acts
「いつも何してるの？」「毎日一日中物真似の練習をしてるよ。」
"What do you do every day?" "I practice impersonations all day, every day."