confirm vs corroborate

confirm and corroborate both are verbs.

Word	Noun	Adjective	Verb	Adverb
confirm	No	No	Yes	No
corroborate	No	No	Yes	No

As verbs, confirm and corroborate are synonyms defined as:

confirm and corroborate: establish or strengthen as with new evidence or facts

Other synonyms of confirm include affirm, substantiate, support, sustain.

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

Other hyponyms of confirm include maintain, uphold, verify, validate, reconfirm.

confirm (verb)	corroborate (verb)
make more firm	establish or strengthen as with new evidence or facts
establish or strengthen as with new evidence or facts	give evidence for
strengthen or make more firm	support with evidence or authority or make more certain or confirm
administer the rite of confirmation to
support a person for a position