horseradish sauce vs horseradish

horseradish sauce and horseradish both are nouns.

Word	Noun	Adjective	Verb	Adverb
horseradish sauce	Yes	No	No	No
horseradish	Yes	No	No	No

horseradish sauce (noun)	horseradish (noun)
creamy white sauce with horseradish and mustard	grated horseradish root
	coarse Eurasian plant cultivated for its thick white pungent root
	the root of the horseradish plant; it is grated or ground and used for seasoning