vouch vs stipulate

vouch and stipulate both are verbs.

Word	Noun	Adjective	Verb	Adverb
vouch	No	No	Yes	No
stipulate	No	No	Yes	No

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

Other hyponyms of vouch include bail, secure.

vouch (verb)	stipulate (verb)
give supporting evidence	specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement
summon (a vouchee) into court to warrant or defend a title	give a guarantee or promise of
give personal assurance; guarantee	make an oral contract or agreement in the verbal form of question and answer that is necessary to give it legal force
give surety or assume responsibility