underpin vs correspond

underpin and correspond both are verbs.

Word	Noun	Adjective	Verb	Adverb
underpin	No	No	Yes	No
correspond	No	No	Yes	No

As verbs, correspond is a hypernym of underpin; that is, correspond is a word with a broader meaning than underpin:

underpin: support with evidence or authority or make more certain or confirm
correspond: be compatible, similar or consistent; coincide in their characteristics

Other hypernyms of underpin include agree, check, fit, gibe, jibe, match, tally.

underpin (verb)	correspond (verb)
support from beneath	exchange messages
support with evidence or authority or make more certain or confirm	be compatible, similar or consistent; coincide in their characteristics
	take the place of or be parallel or equivalent to
	be equivalent or parallel, in mathematics