setup vs apparatus

setup and apparatus both are nouns.

Word	Noun	Adjective	Verb	Adverb
setup	Yes	No	No	No
apparatus	Yes	No	No	No

As nouns, setup and apparatus are synonyms defined as:

setup (noun)	apparatus (noun)
an act that incriminates someone on a false charge	equipment designed to serve a specific function
equipment designed to serve a specific function	(anatomy) a group of body parts that work together to perform a given function
the way something is organized or arranged