summarize vs recap

summarize is not a noun while recap is a noun.

Word	Noun	Adjective	Verb	Adverb
summarize	No	No	Yes	No
recap	Yes	No	Yes	No

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

Other hyponyms of summarize include abstract, precis, docket, recapitulate.

summarize (noun)	recap (noun)
	a summary at the end that repeats the substance of a longer discussion
	a used automobile tire that has been remolded to give it new treads

summarize (verb)	recap (verb)
give a summary (of)	summarize briefly
be a summary of