spice vs spiciness

spice and spiciness both are nouns.

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

As nouns, spice and spiciness are synonyms defined as:

spice and spiciness: the property of being seasoned with spice and so highly flavored

Other synonyms of spice include spicery.

spice (noun)	spiciness (noun)
the property of being seasoned with spice and so highly flavored	the property of being seasoned with spice and so highly flavored
any of a variety of pungent aromatic vegetable substances used for flavoring food	behavior or language bordering on indelicacy
aromatic substances of vegetable origin used as a preservative

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