marina vs dockage

marina and dockage both are nouns.

Word	Noun	Adjective	Verb	Adverb
marina	Yes	No	No	No
dockage	Yes	No	No	No

As nouns, dockage is a hypernym of marina; that is, dockage is a word with a broader meaning than marina:

marina: a fancy dock for small yachts and cabin cruisers
dockage: landing in a harbor next to a pier where ships are loaded and unloaded or repaired; may have gates to let water in or out

Other hypernyms of marina include dock, docking facility.

marina (noun)	dockage (noun)
a fancy dock for small yachts and cabin cruisers	the act of securing an arriving vessel with ropes
	landing in a harbor next to a pier where ships are loaded and unloaded or repaired; may have gates to let water in or out
	a fee charged for a vessel to use a dock