seafaring vs navigation

seafaring and navigation both are nouns.

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

As nouns, seafaring and navigation are synonyms defined as:

Other synonyms of seafaring include sailing.

seafaring (noun)	navigation (noun)
the work of a sailor	the guidance of ships or airplanes from place to place
travel by water	the work of a sailor
	ship traffic

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