pot liquor vs broth

pot liquor and broth both are nouns.

Word	Noun	Adjective	Verb	Adverb
pot liquor	Yes	No	No	No
broth	Yes	No	No	No

As nouns, broth is a hypernym of pot liquor; that is, broth is a word with a broader meaning than pot liquor:

pot liquor: the liquid in which vegetables or meat have been cooked
broth: liquid in which meat and vegetables are simmered; used as a basis for e.g. soups or sauces

Other hypernyms of pot liquor include stock.

pot liquor (noun)	broth (noun)
the liquid in which vegetables or meat have been cooked	a thin soup of meat or fish or vegetable stock
	liquid in which meat and vegetables are simmered; used as a basis for e.g. soups or sauces