Image related words

Bitmap:
Pixel: the smallest addressable screen element in a display device.

Vector image: Images represented by math equations.
Path: What´s between to points on a vector image.
Raster Graphic: BItmap images are raster graphics.
Rasterize: Convert to bitmap.
Resolution: Directly related with quality, how much details are seen on the image.
Dpi: Dots per Inch, it´s used on printing devices and refer to the resolution of the printed paper.