United Provinces noun4 •(historical) A republic that existed from the formal creation of a confederacy in 1581 by several Dutch provinces (which earlier seceded from Spanish rule) until the Batavian Revolution in 1795; the predecessor state of the modern Netherlands. •(historical) A historic region of India, now the state of Uttar Pradesh. •(historical) A province of British India from 1937 to 1947. •(historical) A province of the Dominion of India from 1947 to 1950.