powdered ginger vs spice

powdered ginger and spice both are nouns.

Word	Noun	Adjective	Verb	Adverb
powdered ginger	Yes	No	No	No
spice	Yes	No	Yes	No

As nouns, spice is a hypernym of powdered ginger; that is, spice is a word with a broader meaning than powdered ginger:

powdered ginger: dried ground gingerroot
spice: any of a variety of pungent aromatic vegetable substances used for flavoring food

powdered ginger (noun)	spice (noun)
dried ground gingerroot	the property of being seasoned with spice and so highly flavored
	any of a variety of pungent aromatic vegetable substances used for flavoring food
	aromatic substances of vegetable origin used as a preservative

powdered ginger (verb)	spice (verb)
	make more interesting or flavorful
	add herbs or spices to