Does “stop-motion” refer to anything other than “stop-motion-animation”?

Should “stop-motion” (1275 titles) be merged  into “stop-motion-animation” (2383 title)?  

There’s “free-frame,” but that’s a completely different thing.

One title even has “motion-stop” as a keyword, whatever that means.

Perhaps there are sci-fi titles like The Day the Earth Stood Still that would seem to need a keyword like “motion-comes-to-a-stop."

What do you think?