employment vs ministry

employment and ministry both are nouns.

Word	Noun	Adjective	Verb	Adverb
employment	Yes	No	No	No
ministry	Yes	No	No	No

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

employment (noun)	ministry (noun)
the occupation for which you are paid	the work of a minister of religion
the act of using	building where the business of a government ministry is transacted
the act of giving someone a job	a government department under the direction of a minister of state
the state of being employed or having a job	religious ministers collectively (especially Presbyterian)