deus ex machina

entrance in a performance / appearance in a scene or situation; arrival

appear in a performance, for a character to enter / enter the scene, arrive

(Christianity) God, the Creator

end, conclusion / end-of-life, death

to end, to finish, to quit / to be in a hopeless position

end; conclusion; finish / death; collapse; fall

movie, film

character (a being in a story)

(mathematics) quod erat demonstrandum (that which was to be proved)