winter savory vs winter savoury

winter savory and winter savoury both are nouns.

Word	Noun	Adjective	Verb	Adverb
winter savory	Yes	No	No	No
winter savoury	Yes	No	No	No

As nouns, winter savory and winter savoury are synonyms defined as:

winter savory and winter savoury: resinous leaves used in stews and stuffings and meat loaf

winter savory (noun)	winter savoury (noun)
resinous leaves used in stews and stuffings and meat loaf	resinous leaves used in stews and stuffings and meat loaf
erect perennial subshrub having pink or white flowers and leathery leaves with a flavor of thyme; southern Europe