delinquency vs juvenile delinquency

delinquency and juvenile delinquency both are nouns.

Word	Noun	Adjective	Verb	Adverb
delinquency	Yes	No	No	No
juvenile delinquency	Yes	No	No	No

As nouns, delinquency and juvenile delinquency are synonyms defined as:

delinquency and juvenile delinquency: an antisocial misdeed in violation of the law by a minor

delinquency (noun)	juvenile delinquency (noun)
an antisocial misdeed in violation of the law by a minor	an antisocial misdeed in violation of the law by a minor
a tendency to be negligent and uncaring
nonpayment of a debt when due