Theatre

> a building designed for the performance of plays, operas, etc.

= playhouse

> the whole of plays, seen as a form of art

> The Theatre = the world of actors, companies, etc.

> a piece of writing that is suitable for dramatic presentation

Drama

> a presentation in dialogue and action of a story involving conflict of characters

> dramatic art or literature in general

> an event or series of events having conflicting elements

Play

> a dramatic composition, a drama

> a performance of such a drama, as on the stage

Theatre - Drama - Play