THESAURUS
reoccurrence
alternation, beat, cyclicalness, doubling, duplication, echo, imitation, intermittence, intermittency, meter, oscillation, pendulum motion, periodicalness, periodicity, piston motion, plagiarism, pulsation, quotation, reappearance, rebirth, recurrence, redoubling, reduplication, reecho, regular wave motion, regurgitation, reincarnation, renewal, repetition, reproduction, resumption, return, rhythm, seasonality, undulation