docking facility vs dockage

docking facility and dockage both are nouns.

Word	Noun	Adjective	Verb	Adverb
docking facility	Yes	No	No	No
dockage	Yes	No	No	No

As nouns, docking facility and dockage are synonyms defined as:

docking facility and 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 synonyms of docking facility include dock.

docking facility (noun)	dockage (noun)
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	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