Re·hears·al n. The act of rehearsing; recital; narration; repetition; specifically, a private recital, performance, or season of practice, in preparation for a public exhibition or exercise.
In rehearsal of our Lord's Prayer. --Hooker.
Here's marvelous convenient place for our rehearsal. --Shak.
Dress rehearsal Theater, a private preparatory performance of a drama, opera, etc., in costume.
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dress rehearsal
n : a full uninterrupted rehearsal in costumes shortly before
the first performance