build vs juvenile body

build and juvenile body both are nouns.

Word	Noun	Adjective	Verb	Adverb
build	Yes	No	Yes	No
juvenile body	Yes	No	No	No

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

Other hyponyms of build include person, adult body, male body, female body.

build (noun)	juvenile body (noun)
constitution of the human body	the body of a young person
alternative names for the body of a human being

build (verb)	juvenile body (verb)
form or accumulate steadily
improve the cleansing action of
bolster or strengthen
develop and grow
found or ground
make by combining materials and parts
give form to, according to a plan
build or establish something abstract
be engaged in building
order, supervise, or finance the construction of