repeat vs ditto

repeat and ditto both are nouns.

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

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

repeat (noun)	ditto (noun)
an event that repeats	a mark used to indicate the word above it should be repeated

repeat (verb)	ditto (verb)
happen or occur again	repeat an action or statement
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