Langue d'oc vs Langue d'oc French

Langue d'oc and Langue d'oc French both are nouns.

Word	Noun	Adjective	Verb	Adverb
Langue d'oc	Yes	No	No	No
Langue d'oc French	Yes	No	No	No

As nouns, Langue d'oc and Langue d'oc French are synonyms defined as:

Langue d'oc and Langue d'oc French: medieval provincial dialects of French formerly spoken in the south of France

Langue d'oc (noun)	Langue d'oc French (noun)
medieval provincial dialects of French formerly spoken in the south of France	medieval provincial dialects of French formerly spoken in the south of France