n.

1. 模仿，模擬；仿造；偽造[U]
   I learned the song by imitation.

   我透過模仿學會了這支歌。

2. 仿製品；贗品[C]
   The vase is an imitation of the one in the museum.

   這隻花瓶是博物館那隻的仿製品。

a.

1. 人造的；仿製的；偽造的
   The man was wearing an imitation leather jacket.

   這人穿著一件人造革皮夾克。

n.

1. the action of imitating.
2. a copy of an authentic article.
3. Music  the repetition of a phrase or melody in another part or voice, usually at a different pitch.