juju vs good luck charm

juju and good luck charm both are nouns.

Word	Noun	Adjective	Verb	Adverb
juju	Yes	No	No	No
good luck charm	Yes	No	No	No

As nouns, good luck charm is a hypernym of juju; that is, good luck charm is a word with a broader meaning than juju:

Other hypernyms of juju include charm.

juju (noun)	good luck charm (noun)
a charm superstitiously believed to embody magical powers	something believed to bring good luck
the power associated with a juju