repeat vs geminate

repeat and geminate both are nouns.

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

As verbs, geminate is a hyponym of repeat; that is, geminate is a word with a more specific, narrower meaning than repeat:

Other hyponyms of repeat include copy, replicate, recapitulate, reduplicate.

repeat (noun)	geminate (noun)
an event that repeats	a doubled or long consonant

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