dedicate vs vow

dedicate is not a noun while vow is a noun.

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

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

Other hyponyms of dedicate include consecrate, rededicate, apply.

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

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