bah·raini I. noun alsobah·reini\bäˈrānē\ (pluralbahrainiorbahrainisalsobahreiniorbahreinis) Usage: capitalized Etymology: modification of Arabic bahrānīy, from Baḥrayn Bahrain : a native or inhabitant of Bahrain II. adjective alsobahreini Usage: usually capitalized : of or relating to Bahrain or its inhabitants