dockage vs docking facility

dockage and docking facility both are nouns.

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

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

dockage and docking facility: 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 dockage include dock.

dockage (noun)	docking facility (noun)
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
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