vow vs dedicate

vow is a noun but dedicate is not a noun.

Word	Noun	Adjective	Verb	Adverb
vow	Yes	No	Yes	No
dedicate	No	No	Yes	No

As verbs, dedicate is a hypernym of vow; that is, dedicate is a word with a broader meaning than vow:

Other hypernyms of vow include commit, consecrate, devote, give.

vow (noun)	dedicate (noun)
a solemn pledge (to oneself or to another or to a deity) to do something or to behave in a certain manner

vow (verb)	dedicate (verb)
make a vow; promise	set apart to sacred uses with solemn rites, of a church
dedicate to a deity by a vow	give entirely to a specific person, activity, or cause
	inscribe or address by way of compliment
	open to public use, as of a highway, park, or building