Collocations for repetition - noun

exact
frequent
constant, endless
mindless, rote (esp. AmE)
the mindless repetition of the official line
the rote repetition of mythological formulas

use
Blues is a musical form that uses a lot of repetition.

avoid, prevent
She said I should avoid repetition of words in my essay.

complete, perform (in exercising)
If you can, perform multiple repetitions of this exercise on each hand.