Definition of sequel noun from the Oxford Advanced Learner's Dictionary
sequel
noun
ˈsiːkwəl ˈsiːkwəl
sequel (to something)1a book, film/movie, play, etc. that continues the story of an earlier onea sequel to the hit movie ‘Madagascar’ compare prequel2[usually singular]something that happens after an earlier event or as a result of an earlier eventThere was an interesting sequel to these events later in the year.