fanegas 🔊 Listen to this < /fəˈneɪ gəz; Spanish fɑˈnɛ gɑs/. a unit of dry measure in Spanish-speaking countries, equal in Spain to 1.58 U.S. bushels (55.7 liters). a Mexican unit of land measure, equal to 8.81 acres (3.57 hectares). Share Facebook Twitter Google +