Cels Forum

I've been collecting cels for about 2 years now because I 
either like the show or the image intrigues me 
(I even have cels from shows that I've never seen). I keep 
hearing all these cel and animation terms.  Some of them I'm
familiar with, but most of them I have no idea as to their
meaning. 
Can anyone enlighten me on some of the terms realting to
cels and anime in general?

Thanks,

Noriko