broth vs beef broth

broth and beef broth both are nouns.

Word	Noun	Adjective	Verb	Adverb
broth	Yes	No	No	No
beef broth	Yes	No	No	No

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

broth: liquid in which meat and vegetables are simmered; used as a basis for e.g. soups or sauces
beef broth: a stock made with beef

Other hyponyms of broth include liquor, pot likker, pot liquor, beef stock, chicken broth, chicken stock, stock cube.

broth (noun)	beef broth (noun)
a thin soup of meat or fish or vegetable stock	a stock made with beef
liquid in which meat and vegetables are simmered; used as a basis for e.g. soups or sauces