reduplication vs reiteration

reduplication and reiteration both are nouns.

Word	Noun	Adjective	Verb	Adverb
reduplication	Yes	No	No	No
reiteration	Yes	No	No	No

As nouns, reduplication and reiteration are synonyms defined as:

reduplication and reiteration: the act of repeating over and again (or an instance thereof)

reduplication (noun)	reiteration (noun)
the act of repeating over and again (or an instance thereof)	the act of repeating over and again (or an instance thereof)
a word formed by or containing a repeated syllable or speech sound (usually at the beginning of the word)
the syllable added in a reduplicated word form
repetition of the final words of a sentence or line at the beginning of the next