marjoram vs oregano

marjoram and oregano both are nouns.

Word	Noun	Adjective	Verb	Adverb
marjoram	Yes	No	No	No
oregano	Yes	No	No	No

As nouns, marjoram and oregano are synonyms defined as:

marjoram and oregano: pungent leaves used as seasoning with meats and fowl and in stews and soups and omelets

As nouns, marjoram and oregano are synonyms defined as:

Other synonyms of marjoram include Origanum vulgare, pot marjoram, wild marjoram, winter sweet.

marjoram (noun)	oregano (noun)
pungent leaves used as seasoning with meats and fowl and in stews and soups and omelets	pungent leaves used as seasoning with meats and fowl and in stews and soups and omelets
aromatic Eurasian perennial	aromatic Eurasian perennial