The term 'Terminator' is a popular science fiction franchise that began in 1984 with the movie of the same name. The term is used to describe a cyborg assassin sent back in time to kill a specific target. The crossword solution for the term 'Terminator' is 'Ender, ' which is a reference to the protagonist of the novel Ender's Game by Orson Scott Card. Ender is a young boy who is trained to become a military commander and eventually leads humanity to victory against an alien race.