Bordeaux wine vs Medoc

Bordeaux wine and Medoc both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bordeaux wine	Yes	No	No	No
Medoc	Yes	No	No	No

As nouns, Medoc is a hyponym of Bordeaux wine; that is, Medoc is a word with a more specific, narrower meaning than Bordeaux wine:

Bordeaux wine: any of several red or white wines produced around Bordeaux, France or wines resembling them
Medoc: red Bordeaux wine from the Medoc district of southwestern France

Other hyponyms of Bordeaux wine include claret, red Bordeaux.

Bordeaux wine (noun)	Medoc (noun)
any of several red or white wines produced around Bordeaux, France or wines resembling them	red Bordeaux wine from the Medoc district of southwestern France