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trilogy

American  
[tril-uh-jee] / ˈtrɪl ə dʒi /

noun

plural

trilogies
  1. a series or group of three plays, novels, operas, etc., that, although individually complete, are closely related in theme, sequence, or the like.

  2. (in ancient Greek drama) a series of three complete and usually related tragedies performed at the festival of Dionysus and forming a tetralogy with the satyr play.

  3. a group of three related things.


trilogy British  
/ ˈtrɪlədʒɪ /

noun

  1. a series of three related works, esp in literature, etc

  2. (in ancient Greece) a series of three tragedies performed together at the Dionysian festivals

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of trilogy

From the Greek word trilogía, dating back to 1655–65. See tri-, -logy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When did you realize you had a trilogy on your hands?

From Los Angeles Times

“Dune: Part Three,” the final installment in the film trilogy adapted from Frank Herbert’s acclaimed sci-fi novels, is slated for a December 2026 release.

From Los Angeles Times

Wilder, a former WBC world champion and once the division's most feared puncher, has struggled since his trilogy with Tyson Fury.

From BBC

This trilogy of plays, “Voyage,” “Shipwreck” and “Salvage,” zeroed in on philosophical debates in 19th century Russia.

From Los Angeles Times

In 2002, his nine-hour trilogy “The Coast of Utopia” came to theaters, bringing three plays on three consecutive nights: “Voyage,” “Shipwreck and “Salvage.”

From The Wall Street Journal