ferry vs ferryboat

ferry and ferryboat both are nouns.

Word	Noun	Adjective	Verb	Adverb
ferry	Yes	No	Yes	No
ferryboat	Yes	No	No	No

As nouns, ferry and ferryboat are synonyms defined as:

ferry and ferryboat: a boat that transports people or vehicles across a body of water and operates on a regular schedule

ferry (noun)	ferryboat (noun)
transport by boat or aircraft	a boat that transports people or vehicles across a body of water and operates on a regular schedule
a boat that transports people or vehicles across a body of water and operates on a regular schedule

ferry (verb)	ferryboat (verb)
travel by ferry
transport by ferry
transport from one place to another