paddy wagon vs wagon

paddy wagon and wagon both are nouns.

Word	Noun	Adjective	Verb	Adverb
paddy wagon	Yes	No	No	No
wagon	Yes	No	No	No

As nouns, paddy wagon and wagon are synonyms defined as:

Other synonyms of paddy wagon include black Maria, patrol wagon, police van, police wagon.

paddy wagon (noun)	wagon (noun)
van used by police to transport prisoners	any of various kinds of wheeled vehicles drawn by an animal or a tractor
	a car that has a long body and rear door with space behind rear seat
	van used by police to transport prisoners
	a child's four-wheeled toy cart sometimes used for coasting