reduplicate vs repeat

reduplicate is not a noun while repeat is a noun.

Word	Noun	Adjective	Verb	Adverb
reduplicate	No	No	Yes	No
repeat	Yes	No	Yes	No

As verbs, reduplicate and repeat are synonyms defined as:

Other synonyms of reduplicate include double, duplicate, replicate.

As verbs, repeat is a hypernym of reduplicate; that is, repeat is a word with a broader meaning than reduplicate:

Other hypernyms of reduplicate include double, duplicate, reduplicate, replicate.

reduplicate (noun)	repeat (noun)
	an event that repeats

reduplicate (verb)	repeat (verb)
make or do or perform again	happen or occur again
form by reduplication	to say, state, or perform again
	to say again or imitate
	make or do or perform again
	repeat an earlier theme of a composition
	do over