cardamum vs cardamom

cardamum and cardamom both are nouns.

Word	Noun	Adjective	Verb	Adverb
cardamum	Yes	No	No	No
cardamom	Yes	No	No	No

As nouns, cardamum and cardamom are synonyms defined as:

cardamum and cardamom: aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces

Other synonyms of cardamum include cardamon.

cardamum (noun)	cardamom (noun)
aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces	aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces
	rhizomatous herb of India having aromatic seeds used as seasoning