Dictionary.com
Thesaurus.com
Synonyms

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.

He wrote more than two dozen books, including Cold War spy trilogies and World War II nonfiction.

From The Wall Street Journal

At Dodger Stadium, the threepeat hype video was a movie trailer with this tag line: “Great sequels build legendary trilogies.”

From Los Angeles Times

That was followed by the Hobbit film trilogy and a big-budget Amazon Prime TV spin-off.

From BBC

In between clips, text on screen reads: "This December, experience the epic conclusion of the Dune trilogy."

From BBC

The final installment of the trilogy will hit theaters Dec. 18.

From Los Angeles Times