trilogy

noun

tril·​o·​gy ˈtri-lə-jē How to pronounce trilogy (audio)
plural trilogies
: a series of three dramas or literary works or sometimes three musical compositions that are closely related and develop a single theme

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Dozens of tragic trilogies were written for the Greek stage, though only one, Aeschylus's great Oresteia (consisting of Agamemnon, The Libation Bearers, *and *The Eumenides), has survived complete. Authors in later years have occasionally chosen to create trilogies to allow themselves to develop a highly complex story or cover a long span of time. Tolkien's Lord of the Rings wasn't actually intended as a trilogy, but since it was published in three volumes it's usually called one. George Lucas's three original Star Wars movies are an example of a film trilogy (which he followed many years later by another).

Examples of trilogy in a Sentence

the last book in the trilogy
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The first film in a trilogy based on the 'Infinity Castle’ story arc of a manga comic book series, Demon Slayer is also a direct sequel to the fourth season of the Netflix anime series with the same name. Caroline Reid, Forbes.com, 15 Sep. 2025 But his career really exploded a couple of years later, thanks to his starring role as Frodo in The Lord of the Rings trilogy. Keith Langston, Entertainment Weekly, 14 Sep. 2025 The threequel currently has the best reviews in the trilogy with 88% fresh on Rotten Tomatoes, and a near-best audience score of 96%, just behind New Era’s 97%. Anthony D'alessandro, Deadline, 13 Sep. 2025 His collaboration with Shane Meadows on the This Is England trilogy (’86, ’88, ’90) earned him widespread critical acclaim and multiple awards. Lily Ford, HollywoodReporter, 12 Sep. 2025 See All Example Sentences for trilogy

Word History

Etymology

Greek trilogia, from tri- + -logia -logy

First Known Use

circa 1661, in the meaning defined above

Time Traveler
The first known use of trilogy was circa 1661

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Cite this Entry

“Trilogy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trilogy. Accessed 17 Sep. 2025.

Kids Definition

trilogy

noun
tril·​o·​gy ˈtril-ə-jē How to pronounce trilogy (audio)
plural trilogies
: a series of three literary, dramatic, or musical works that are closely related and develop a single theme

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