recurrence vs repeat

recurrence and repeat both are nouns.

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

As nouns, repeat is a hypernym of recurrence; that is, repeat is a word with a broader meaning than recurrence:

Other hypernyms of recurrence include repetition.

recurrence (noun)	repeat (noun)
happening again (especially at regular intervals)	an event that repeats

recurrence (verb)	repeat (verb)
	happen or occur again
	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