noun
trilogy
TRIL-uh-jee/ˈtrɪlədʒi/
A set of three related works.
The final novel in the trilogy completes the family's story.

Etymology
The pieces mean “three” and “story.” The Greek term named three complete tragedies linked within a larger narrative, giving the modern sense of three related works.
In context
three books with you these are from michael mcbride his unit 51 trilogy the first one subhuman came out in the year 2017 the second one forsaken came out and the final one mutation came out in 2020.
More examples
- We watch all three movies in the trilogy over the weekend.
- Her trilogy of plays follows three generations of one family.
- The author has written two fantasy trilogies.
Forms
trilogy · trilogies