chassis vs male body

chassis and male body both are nouns.

Word	Noun	Adjective	Verb	Adverb
chassis	Yes	No	No	No
male body	Yes	No	No	No

As nouns, male body is a hyponym of chassis; that is, male body is a word with a more specific, narrower meaning than chassis:

Other hyponyms of chassis include person, juvenile body, adult body, female body.

chassis (noun)	male body (noun)
the skeleton of a motor vehicle consisting of a steel frame supported on springs that holds the body and motor	the body of a male human being
a metal mounting for the circuit components of an electronic device
alternative names for the body of a human being