preferred shares vs preference shares

preferred shares and preference shares both are nouns.

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

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

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

Other synonyms of preferred shares include preferred stock.

preferred shares (noun)	preference 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