preferred shares vs preferred stock

preferred shares and preferred stock both are nouns.

Word	Noun	Adjective	Verb	Adverb
preferred shares	Yes	No	No	No
preferred stock	Yes	No	No	No

As nouns, preferred shares and preferred stock are synonyms defined as:

preferred shares and preferred stock: stock whose holders are guaranteed priority in the payment of dividends but whose holders have no voting rights

Other synonyms of preferred shares include preference shares.

preferred shares (noun)	preferred stock (noun)
stock whose holders are guaranteed priority in the payment of dividends but whose holders have no voting rights	stock whose holders are guaranteed priority in the payment of dividends but whose holders have no voting rights