grant vs vouchsafe

grant is a noun but vouchsafe is not a noun.

Word	Noun	Adjective	Verb	Adverb
grant	Yes	No	Yes	No
vouchsafe	No	No	Yes	No

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

Other hyponyms of grant include allowance.

grant (noun)	vouchsafe (noun)
the act of providing a subsidy
a right or privilege that has been granted
a contract granting the right to operate a subsidiary business
any monetary aid
(law) a transfer of property by deed of conveyance

grant (verb)	vouchsafe (verb)
be willing to concede	grant in a condescending manner
allow to have
let have
transfer by deed
give as judged due or on the basis of merit
give over; surrender or relinquish to the physical control of another
bestow, especially officially