repeating vs repetition

repeating and repetition both are nouns.

Word	Noun	Adjective	Verb	Adverb
repeating	Yes	No	No	No
repetition	Yes	No	No	No

As nouns, repeating and repetition are synonyms defined as:

repeating (noun)	repetition (noun)
the act of doing or performing again	the act of doing or performing again
	the repeated use of the same word or word pattern as a rhetorical device
	an event that repeats