lump sugar vs refined sugar

lump sugar and refined sugar both are nouns.

Word	Noun	Adjective	Verb	Adverb
lump sugar	Yes	No	No	No
refined sugar	Yes	No	No	No

As nouns, refined sugar is a hypernym of lump sugar; that is, refined sugar is a word with a broader meaning than lump sugar:

lump sugar: refined sugar molded into rectangular shapes convenient as single servings
refined sugar: a white crystalline carbohydrate used as a sweetener and preservative

Other hypernyms of lump sugar include sugar.

lump sugar (noun)	refined sugar (noun)
refined sugar molded into rectangular shapes convenient as single servings	a white crystalline carbohydrate used as a sweetener and preservative