Quick Quiz: Nouns Score: Change category, Flip order Reset Incorrect! Try again. Noun: cosa nostra Your choice? the metaphysical study of the origin and nature of the universe   (Noun: cosmology) a crime syndicate in the United States; organized in families; believed to have important relations to the Sicilian Mafia one of two or more tenants holding title to the same property   (Noun: cotenant) the world's largest active volcano; located in the Andes in north central Ecuador   (Noun: cotopaxi)