underpin vs gibe

underpin is not a noun while gibe is a noun.

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

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

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

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

underpin (noun)	gibe (noun)
	an aggressive remark directed at a person like a missile and intended to have a telling effect

underpin (verb)	gibe (verb)
support from beneath	laugh at with contempt and derision
support with evidence or authority or make more certain or confirm	be compatible, similar or consistent; coincide in their characteristics