We don't have synonyms for rehersal yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rehearsal, reversal and demersal.
°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.
°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.