monotheism vs Judaism

monotheism and Judaism both are nouns.

Word	Noun	Adjective	Verb	Adverb
monotheism	Yes	No	No	No
Judaism	Yes	No	No	No

As nouns, Judaism is a hyponym of monotheism; that is, Judaism is a word with a more specific, narrower meaning than monotheism:

monotheism: belief in a single God
Judaism: the monotheistic religion of the Jews having its spiritual and ethical principles embodied chiefly in the Torah and in the Talmud

Other hyponyms of monotheism include Islam, Islamism, Mohammedanism, Muhammadanism, Muslimism.

monotheism (noun)	Judaism (noun)
belief in a single God	the monotheistic religion of the Jews having its spiritual and ethical principles embodied chiefly in the Torah and in the Talmud
	Jews collectively who practice a religion based on the Torah and the Talmud