wharf vs wharfage

wharf and wharfage both are nouns.

Word	Noun	Adjective	Verb	Adverb
wharf	Yes	No	Yes	No
wharfage	Yes	No	No	No

As nouns, wharf and wharfage are synonyms defined as:

wharf and wharfage: a platform built out from the shore into the water and supported by piles; provides access to ships and boats

Other synonyms of wharf include dock, pier.

wharf (noun)	wharfage (noun)
a platform built out from the shore into the water and supported by piles; provides access to ships and boats	a platform built out from the shore into the water and supported by piles; provides access to ships and boats
	a fee charged for the use of a wharf or quay