a practice session in preparation for a public performance (as of a play or speech or concert)
He missed too many rehearsals. A rehearsal will be held the day before the wedding.
source: WordNet 3.0
(psychology) a form of practice; repetition of information (silently or aloud) in order to keep it in short-term memory
source: WordNet 3.0
The act of rehearsing; recital; narration; repetition; specifically, a private recital, performance, or season of practice, in preparation for a public exhibition or exercise.