Definition of Trilogy

a group of three things which are related

Examples of Trilogy in a sentence

The first book in the trilogy sets the course for the other two books in the series.  🔊

When the playwright wrote his trilogy of plays, he never imagined he’d be inspired to write a fourth play about the same characters.  🔊

The last movie in the trilogy of three films opens tomorrow.  🔊

The trilogy of novels covers the time period between the main character’s birth until his death in the third and final novel.  🔊

Soon, the popular book trilogy will be made into three interrelated movies.  🔊

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