1. a building or outdoor area where plays, movies, or other performances are presented
2. the art or profession of writing, acting in, or producing plays
3. a place or area where important events happen

Examples

• We bought tickets to see the play at the downtown theater.
• The movie theater was packed for the premiere.
• She studied theater in college and now works as an actress.
• Broadway is the heart of American theater.
• The peace talks created a new theater of diplomacy.
• Troops were deployed to the Pacific theater during the war.
• The old theater has beautiful red velvet seats.