vocation vs profession

vocation and profession both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocation	Yes	No	No	No
profession	Yes	No	No	No

As nouns, profession is a hyponym of vocation; that is, profession is a word with a more specific, narrower meaning than vocation:

Other hyponyms of vocation include press corps.

vocation (noun)	profession (noun)
the particular occupation for which you are trained	an occupation requiring special education (especially in the liberal arts or sciences)
a body of people doing the same kind of work	an open avowal (true or false) of some belief or opinion
	affirmation of acceptance of some religion or faith
	the body of people in a learned occupation