rehearsal

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The act of practicing in preparation for a public performance.
• noun A session of practice for a performance, as of a play.
• noun A detailed enumeration or repetition.

from The Century Dictionary.

• noun The act of rehearsing.
• noun Narration; a telling or recounting, as of particulars: as, the rehearsal of one's wrongs or adventures.
• noun In music and the drama: The process of studying by practice or preparatory exercise: as, to put a work in rehearsal.
• noun A meeting of musical or dramatic performers for practice and study together, preliminary to a public performance.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of rehearsing; recital; narration; repetition; specifically, a private recital, performance, or season of practice, in preparation for a public exhibition or exercise.
• noun (Theater) a private preparatory performance of a drama, opera, etc., in costume.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun the practicing of something which is to be performed before an audience, usually to test or improve the interaction between several participating people, or to allow technical adjustments with respect to staging to be done

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a practice session in preparation for a public performance (as of a play or speech or concert)
• noun (psychology) a form of practice; repetition of information (silently or aloud) in order to keep it in short-term memory