/ ˌrepəˈtɪʃn; NAmE / noun
1.
[ U , C ] the fact of doing or saying the same thing many times :
learning by repetition
2.
[ C ] a thing that has been done or said before :
We do not want to see a repetition of last year's tragic events.
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WORD ORIGIN
late Middle English : from Old French repeticion or Latin repetitio(n-) , from repetere , from re- back + petere seek.