Protestant vs religious belief

Protestant and religious belief both are nouns.

Word	Noun	Adjective	Verb	Adverb
Protestant	Yes	Yes	No	No
religious belief	Yes	No	No	No

Protestant (noun)	religious belief (noun)
the Protestant churches and denominations collectively	a strong belief in a supernatural power or powers that control human destiny
an adherent of Protestantism

Protestant (adjective)	religious belief (adjective)
of or relating to Protestants or Protestantism