preferred stock vs preferred shares

preferred stock and preferred shares both are nouns.

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

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

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

Other synonyms of preferred stock include preference shares.

preferred stock (noun)	preferred shares (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