1080i

Definition:

The "1080" part of 1080i describes the number of vertical lines that make up a television or video signal. Most television or video signals are rated at 480, 720 or 1080. The more vertical lines that make up the picture, the crisper or higher definition the picture. The "i" following 1080 indicates that the video display is constructed using an interlaced method.

Some television stations broadcast their high definition signals in a 1080i format.

Here's a word you may not know...

GIF

GIF stands for Graphics Interchange Format and represents a file format used to store graphics and images. Images stored in the GIF format are limited to 256 colors. However, GIF images can be animated and can be created with one color specified as transparent such that the transparent color blends in to its background.