Judaism vs monotheism

Judaism and monotheism both are nouns.

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

As nouns, monotheism is a hypernym of Judaism; that is, monotheism is a word with a broader meaning than Judaism:

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

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