Series (noun)

1. A set of related things, events, or actions that come one after the other.
2. A group of books, films, or games that have similar characters or themes.
3. A set of similar objects or events that happen one after the other.

Origin:

Middle english, from latin series, from serere to join, arrange, from se- together + rere to arrange.

Examples:

1. The series of events led to the final outcome.
2. She is a fan of the Harry Potter series.
3. They are playing a series of baseball games.
4. The series of lectures covered a wide range of topics.
5. The series of experiments helped to understand the phenomenon.