employment vs seafaring

employment and seafaring both are nouns.

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

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

employment (noun)	seafaring (noun)
the occupation for which you are paid	the work of a sailor
the act of using	travel by water
the act of giving someone a job
the state of being employed or having a job

employment (adjective)	seafaring (adjective)
	used on the high seas