vow vs profess

vow is a noun but profess is not a noun.

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

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

Other hyponyms of vow include affiance, betroth, engage, plight, swear.

vow (noun)	profess (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)	profess (verb)
make a vow; promise	practice as a profession, teach, or claim to be knowledgeable about
dedicate to a deity by a vow	take vows, as in religious order
	admit (to a wrongdoing)
	confess one's faith in, or allegiance to
	state insincerely
	receive into a religious order or congregation
	state freely