wharf vs berth

wharf and berth both are nouns.

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

As verbs, berth is a hypernym of wharf; that is, berth is a word with a broader meaning than wharf:

Other hypernyms of wharf include moor, tie up.

As verbs, wharf and berth are synonyms defined as:

Other synonyms of wharf include moor.

wharf (noun)	berth (noun)
a platform built out from the shore into the water and supported by piles; provides access to ships and boats	a job in an organization
	a bed on a ship or train; usually in tiers
	a place where a craft can be made fast

wharf (verb)	berth (verb)
moor at a wharf	secure in or as if in a berth or dock
discharge at a wharf	come into or dock at a wharf
come into or dock at a wharf	provide with a berth
store on a wharf
provide with a wharf