Anatomy of Lens

When everyone started using DSLR lenses, I felt confused: What does the name Canon EF 70-200mm f/4.0 L IS USM mean? What is Nikon DX AF-S NIKKOR 18-55mm 1:3.5-5.6 GII ED? This string of abbreviations is almost like a strange language to novices. Today, let us use some lens labels from Canon and Nikon to tell...