repeat vs periodic event

repeat and periodic event both are nouns.

Word	Noun	Adjective	Verb	Adverb
repeat	Yes	No	Yes	No
periodic event	Yes	No	No	No

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

Other hypernyms of repeat include recurrent event.

repeat (noun)	periodic event (noun)
an event that repeats	an event that recurs at intervals

repeat (verb)	periodic event (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