marsh buggy vs swamp buggy

marsh buggy and swamp buggy both are nouns.

Word	Noun	Adjective	Verb	Adverb
marsh buggy	Yes	No	No	No
swamp buggy	Yes	No	No	No

As nouns, marsh buggy and swamp buggy are synonyms defined as:

marsh buggy and swamp buggy: an amphibious vehicle typically having four-wheel drive and a raised body

marsh buggy (noun)	swamp buggy (noun)
an amphibious vehicle typically having four-wheel drive and a raised body	an amphibious vehicle typically having four-wheel drive and a raised body