Breadcrumb Home > Dictionary > Index H Hainan: Meaning and Definition of Find definitions for: Hai•nan Pronunciation: (hī'nän'), [key] — n. an island in the South China Sea, separated from the mainland by the Hainan Strait: a part of Guangdong province. 2,800,000; 13,200 sq. mi. (34,200 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. haimish Hainan Strait TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: feral Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language