"End" is a noun too. Why isn't "ends" used instead of "endings"?
"I don't like stories that have unhappy endings."
Murphy's English Grammar in Use
'ends' usually applies to physical objects. the ends of a table, the ends of a string, the ends of a rope 'endings' usually applies to works of literature, film, and music. the ending of a play, the ending of a symphony, the ending of a movie That doesn't mean we don't "mix and match" at times.
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'ends' usually applies to physical objects.
the ends of a table, the ends of a string, the ends of a rope
'endings' usually applies to works of literature, film, and music.
the ending of a play, the ending of a symphony, the ending of a movie
That doesn't mean we don't "mix and match" at times.
The music got louder at the end of the movie.