racism vs antisemitism

racism and antisemitism both are nouns.

Word	Noun	Adjective	Verb	Adverb
racism	Yes	No	No	No
antisemitism	Yes	No	No	No

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

racism: the prejudice that members of one race are intrinsically superior to members of other races
antisemitism: the intense dislike for and prejudice against Jewish people

Other hyponyms of racism include anti-Semitism, white supremacy.

racism (noun)	antisemitism (noun)
discriminatory or abusive behavior towards members of another race	the intense dislike for and prejudice against Jewish people
the prejudice that members of one race are intrinsically superior to members of other races