The difference between cropping and framing.
I see framing an image as building the image / composition within the frame at the point of taking the image. This is the initial vision of what you capture through the lens.
Cropping is an edit that happens after the framed image has been shot, it is used to recompose or restructure an image. An image can be cropped to remove elements in the frame that were not wanted or to change the view of the image.