What are the names of different ways to fit video when the aspect ratios do not match? If I want to communicate to someone editing a video, how can I tell in an unambiguous way how I want the video to be resized.

1) If I want the image to be cropped so that there are no black strips filling the area that has no image.

2) If I want the the video to be scaled down so that the image is not cropped, adding the two black strips filling the gaps where there is no image.
Letter box if you have bars on the top and bottom.  
Pillar box if you have them on the sides.  
Stretch (or possibly anamorphic, depending on what the intended playback aspect ratio is)   if you are full screening it by stretching it out to fill the space.  
Cropped if you are making it full screen by cutting off the edges.