winter sweet vs Origanum vulgare

winter sweet and Origanum vulgare both are nouns.

Word	Noun	Adjective	Verb	Adverb
winter sweet	Yes	No	No	No
Origanum vulgare	Yes	No	No	No

As nouns, winter sweet and Origanum vulgare are synonyms defined as:

Other synonyms of winter sweet include marjoram, oregano, pot marjoram, wild marjoram.

winter sweet (noun)	Origanum vulgare (noun)
deciduous Japanese shrub cultivated for its fragrant yellow flowers	aromatic Eurasian perennial
aromatic Eurasian perennial
dwarf aromatic shrub of Crete
medium-sized shrubby tree of South Africa having thick leathery evergreen leaves and white or pink flowers and globose usually two-seeded purplish black fruits