Arabic language vs Semitic

Arabic language and Semitic both are nouns.

Word	Noun	Adjective	Verb	Adverb
Arabic language	Yes	No	No	No
Semitic	Yes	Yes	No	No

As nouns, Semitic is a hypernym of Arabic language; that is, Semitic is a word with a broader meaning than Arabic language:

Arabic language: the Semitic language of the Arabs; spoken in a variety of dialects
Semitic: a major branch of the Afro-Asiatic language family

Arabic language (noun)	Semitic (noun)
the Semitic language of the Arabs; spoken in a variety of dialects	a major branch of the Afro-Asiatic language family

Arabic language (adjective)	Semitic (adjective)
	of or relating to or characteristic of Semites
	of or relating to the group of Semitic languages