piquantness vs spice

piquantness and spice both are nouns.

Word	Noun	Adjective	Verb	Adverb
piquantness	Yes	No	No	No
spice	Yes	No	Yes	No

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

Other hypernyms of piquantness include spicery, spiciness.

piquantness (noun)	spice (noun)
a tart spicy quality	the property of being seasoned with spice and so highly flavored
the quality of being agreeably stimulating or mentally exciting	any of a variety of pungent aromatic vegetable substances used for flavoring food
	aromatic substances of vegetable origin used as a preservative

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