Impostor = Lighter?

Yin says teaching methods make it easier to learn english. Impostor equals lighter? Trin, yes, not exactly, but im an impostor is more like a pretender pretending to be something. So for example, maybe if i am maybe if i bought a police uniform, a police uniform,. and then i walked around a city pretending to be a policeman, but i'm not really a policeman. I'm right? I'm pretending, i'm fake, pretending to besomething i'm not. And that's tht's really what imposture means. It's little different than liar. An impostoris, not so much verbal, like a liar tells lies,